Shell Scripting
•
0 likes•982 views
Sexta parte da apresentação sobre Shell Scripting realizada na Bluesoft Confira o video em http://www.vimeo.com/
Report
Share
Report
Share
![Exemplos simples ,[object Object],ls | wc -l find | wc -l find -type f | wc -l ,[object Object],fortune | tee temp ; wc temp; rm -f temp temp =$( fortune ); echo $temp ; echo $temp | wc ,[object Object],PS1 ="[ @: ( git branch 2> /dev/null | grep -e ' ' | sed 's/^...*/{}/') ] "](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recommended
Productivity tips for developers
This document provides productivity tips for developers, including customizing dotfiles for Bash, Vim, and Git configurations. It also discusses using text expanders, customizing the MacBook touch bar, and invites readers to share their own productivity tricks. The document recommends dotfiles like .bashrc, .vimrc and .gitconfig to store customizations and aliases. It provides examples of aliases and settings for Bash, Vim and Git configurations.
Yg byev2e
This C code defines an exploit that can be used to remotely gain root access on an Apache 2.2.17 server by sending a crafted buffer to port 80. It includes encoded shellcode that executes a reverse shell, and builds a buffer containing NOP sleds, shellcode, and trailing characters to exploit a vulnerability. It connects to the target, sends the malicious buffer, and waits for a reverse shell if successful.
GDG DevFest Kyoto 2014 これからのGoの話をしよう
This document provides information about the GDG DevFest Kyoto 2014 event, including details about the operating system, software versions, and tutorials on using Go, Git/Mercurial, SQL, OpenCV, and the Gobot framework for controlling robots and drones.
Functional php
This document discusses functional programming concepts in PHP like pure functions, higher-order functions, and recursion. It provides examples of mapping, folding, and partial function application. Modularization with functional programming encourages decomposing problems into smaller parts and recomposing them with lazy evaluation and higher-order functions to reduce complexity.
Hashing enderecamento aberto bean - bean
This Java code defines a Hash class with integer and character attributes to represent a key and status. The class contains multiple constructors to initialize the attributes in different ways and getter/setter methods to access and modify the key and status values.
Git avançado
This document discusses advanced Git topics including patches, commands that generate diffs, rewriting history, bisecting, rerere, moving code, and plumbling. It also explains how Git stores content in blobs by compressing a header, content, and SHA-1 hash into a file in the .git/objects directory based on the hash. Contact information is provided for questions.
Playing 44CON CTF for fun and profit
The document summarizes the author's experience playing a capture the flag (CTF) competition called the 44Con CTF. It describes recon activities like scanning services to identify vulnerabilities. Several services are found to have exploitable issues, including a pastie service with SQL injection, a mail server with remote code execution, and an authentication service with a stack buffer overflow. The author is able to exploit these issues to steal flags, gain a remote shell, and eventually escalate privileges to root through service restart hijacking and a mail service vulnerability. Overall it provides a play-by-play of the reconnaissance and exploitation steps taken during the CTF.
プログラム実行の話と
OSとメモリの挙動の話
SFC-RG(https://rg.sfc.keio.ac.jp/)の講義において90分話した時のもの．
- プログラムがどう動いているのか
- 実行するとはどういうことか
- 実行時のメモリの配置・挙動
OSが何をしているのか
- プロセス(プログラム)周りの仕事
- メモリ管理
- (ハードウェアの扱い)
Recommended
Productivity tips for developers
This document provides productivity tips for developers, including customizing dotfiles for Bash, Vim, and Git configurations. It also discusses using text expanders, customizing the MacBook touch bar, and invites readers to share their own productivity tricks. The document recommends dotfiles like .bashrc, .vimrc and .gitconfig to store customizations and aliases. It provides examples of aliases and settings for Bash, Vim and Git configurations.
Yg byev2e
This C code defines an exploit that can be used to remotely gain root access on an Apache 2.2.17 server by sending a crafted buffer to port 80. It includes encoded shellcode that executes a reverse shell, and builds a buffer containing NOP sleds, shellcode, and trailing characters to exploit a vulnerability. It connects to the target, sends the malicious buffer, and waits for a reverse shell if successful.
GDG DevFest Kyoto 2014 これからのGoの話をしよう
This document provides information about the GDG DevFest Kyoto 2014 event, including details about the operating system, software versions, and tutorials on using Go, Git/Mercurial, SQL, OpenCV, and the Gobot framework for controlling robots and drones.
Functional php
This document discusses functional programming concepts in PHP like pure functions, higher-order functions, and recursion. It provides examples of mapping, folding, and partial function application. Modularization with functional programming encourages decomposing problems into smaller parts and recomposing them with lazy evaluation and higher-order functions to reduce complexity.
Hashing enderecamento aberto bean - bean
This Java code defines a Hash class with integer and character attributes to represent a key and status. The class contains multiple constructors to initialize the attributes in different ways and getter/setter methods to access and modify the key and status values.
Git avançado
This document discusses advanced Git topics including patches, commands that generate diffs, rewriting history, bisecting, rerere, moving code, and plumbling. It also explains how Git stores content in blobs by compressing a header, content, and SHA-1 hash into a file in the .git/objects directory based on the hash. Contact information is provided for questions.
Playing 44CON CTF for fun and profit
The document summarizes the author's experience playing a capture the flag (CTF) competition called the 44Con CTF. It describes recon activities like scanning services to identify vulnerabilities. Several services are found to have exploitable issues, including a pastie service with SQL injection, a mail server with remote code execution, and an authentication service with a stack buffer overflow. The author is able to exploit these issues to steal flags, gain a remote shell, and eventually escalate privileges to root through service restart hijacking and a mail service vulnerability. Overall it provides a play-by-play of the reconnaissance and exploitation steps taken during the CTF.
プログラム実行の話と
OSとメモリの挙動の話
SFC-RG(https://rg.sfc.keio.ac.jp/)の講義において90分話した時のもの．
- プログラムがどう動いているのか
- 実行するとはどういうことか
- 実行時のメモリの配置・挙動
OSが何をしているのか
- プロセス(プログラム)周りの仕事
- メモリ管理
- (ハードウェアの扱い)
Git Sensitive Data
Git can unintentionally store sensitive data like passwords or keys in its commit history. While commands like filter-branch can remove sensitive data from the local history, it may still be retrievable from remote repositories unless the history is rewritten there as well. The safest approach is to change all credentials and remove the local git repository entirely.
TDDBC お題
The document describes a WordFilter class that can detect and censor sensitive words in strings. It allows specifying words to censor, and will replace matches with <censored> in the censor method output or return true/false from the detect method. The filter is designed to find and obscure matches without disturbing surrounding context.
ZeroMQ Is The Answer: DPC 11 Version
This document provides an overview of 0MQ and examples of how to use it with PHP. It introduces 0MQ patterns like request/response, pub/sub, queue, and pipeline. Code snippets in PHP demonstrate implementing these patterns using 0MQ sockets. Additional resources for learning more about 0MQ and using it with PHP are provided at the end.
How to stand on the shoulders of giants
The slides from my keynote at PHP NW 2011, about how every great breakthrough is built on the work that has come before it.
All I know about rsc.io/c2go
This document discusses using the C to Go translation tool c2go to translate C code implementing quicksort algorithms into Go code. It provides examples of translating simple quicksort C code, improving the translation by using a configuration file, and how c2go handles standard C functions like qsort by translating them to their Go equivalents. The examples demonstrate how c2go can generate valid Go code from C code but may require some manual fixes or configuration to handle certain data structures or language differences.
Windows shutdown virus source code c++
This C code defines functions to check if a computer system is already infected by a virus by looking for a file called "sysres.exe" on drives C, D, E, and F. If the file is not found, the virus file will copy itself to "sysres.exe" on one of the drives and add it to the registry run key so that it executes on startup. If the system is already infected, it will just restart the computer.
Tgh.pl
This Perl script connects to an IRC server and channel to act as a bot. It forks multiple processes and uses these to execute system commands. The bot responds to commands from privileged users, executing commands or stopping processes. It parses IRC messages and routes commands for system execution or to send responses. Privileged users can start and stop the bot's processes through IRC commands.
Combine vs RxSwift
The document contains code examples that demonstrate how to use RxSwift and Combine to create and subscribe to subjects, handle events and threads, and dispose of subscriptions. Specifically, it shows:
1. Creating PublishSubjects and PassthroughSubjects and subscribing to map and print events.
2. Creating BehaviorSubjects and CurrentValueSubjects, assigning initial values, and subscribing to print values.
3. Creating DisposeBags and Cancelables to clear subscriptions and resources.
4. Using operators like subscribeOn, observeOn, and receiveOn to control thread handling and scheduling.
Linux Command Line
The document lists several dangerous Linux commands that could damage a system, as well as some basic Linux commands. It then discusses Linux file permissions and provides examples of changing permissions using chmod. Finally, it describes how to crack Windows passwords by mounting a Windows partition and using chntpw on the SAM file.
PHPerのためのPerl入門@ Kansai.pm#12
The document provides instructions for installing perlbrew and cpanminus on a system. It describes downloading and installing perlbrew to manage multiple perl versions. It also shows how to download and install cpanminus, which is a utility for installing Perl modules from CPAN.
NUMOSS 4th Week - Commandline Tutorial
The document lists several dangerous commands that can be run on a Linux or Unix system and cause data loss or system instability. It also provides basic commands for file operations, package management, networking tasks and changing permissions and passwords. The dangerous commands include deleting all files in the root folder, formatting a partition, executing a fork bomb to overload the system, and overwriting the file system on a designated device. The basic commands cover file listing, copying, downloading, creating directories and viewing directory information. It also explains Linux file permissions in terms of read, write and execute attributes.
ZeroMQ Is The Answer
Using Mikko Koppanen's PHP ZMQ extension we will look at how you can easily distribute work to background processes, provide flexible service brokering for your next service oriented architecture, and manage caches efficiently and easily with just PHP and the ZeroMQ libraries. Whether the problem is asynchronous communication, message distribution, process management or just about anything, ZeroMQ can help you build an architecture that is more resilient, more scalable and more flexible, without introducing unnecessary overhead or requiring a heavyweight queue manager node.
Hashing endereçamento aberto - main
This document contains the code for a Java program that implements a menu-driven hash table. The program displays a menu with options to initialize, insert, remove, list, and exit the hash table. It uses a Scanner to get the user's menu selection, then calls the appropriate method on an operacoes class based on the switch statement. The program loops until the user selects the exit option.
ZeroMQ: Messaging Made Simple
This document provides an overview of 0MQ (also known as ZeroMQ), a messaging library that enables various messaging patterns like request/reply, publish/subscribe, and queueing. It includes code examples in multiple languages like Erlang, Python, and PHP demonstrating how to implement common 0MQ patterns. Links are also provided for additional 0MQ resources.
Hands on Hadoop
My intro talk for hadoop and how to use it with python streaming.
Code is here : http://github.com/ptarjan/hands-on-hadoop-tutorial/
01 คำสั่งแสดงผล ในภาษาซี
The C code includes header files, defines a main function, and uses printf statements to output three messages to the console: "Hello!!", "My Name is Panatchakorn", and "I Love C Language". It then calls getch to pause the program before it exits.
Crack.ba
This batch script cracks passwords for RAR files by repeatedly using the Unrar.exe tool to extract files with incrementing password guesses, deleting the extraction directory and Unrar.exe file upon finding the correct password. It gets the RAR file name and path from the user, checks for validity, and then starts an infinite loop extracting with passwords from 0 to infinity until extraction succeeds without errors.
Doubly Linked List
This document describes functions for a doubly linked list data structure in C including:
1) Functions for inserting nodes at the beginning, end, and at a specified position before or after a node.
2) Functions for deleting nodes from the beginning, end, and at a specified position.
3) A display function to print out the elements of the linked list.
4) Additional functions like creating new nodes, checking for invalid positions, and calculating the length.
Linear queue
This C program implements a queue data structure using an array. It defines functions for enqueue, dequeue, and display operations on the queue. The main function contains a menu loop that calls the appropriate queue function based on the user's choice and displays messages for the queue status and operations.
What is suid, sgid and sticky bit
The document discusses SUID, SGID, and sticky bits in Linux file permissions. It provides examples of setting these permissions on files and directories and observing the effects. Specifically, it shows:
- Setting the SUID bit on /usr/bin/su allows non-root users to run su with root privileges
- Setting the SGID bit on a directory gives create and write permissions to all members of the directory's group
- Setting the sticky bit on a directory prevents deletion of files within it by non-owners
Unix 5 en
This document contains a lecture on working with arrays, scripts, and SSH/SCP in UNIX systems. It discusses special variables used in scripts, how to define and manipulate arrays, examples of useful scripts for renaming files, backing up data, and extracting video files from DVDs, and how to use SSH to securely connect to remote systems and SCP to securely transfer files between systems. It also covers generating and using public/private key pairs for passwordless SSH login.
A CTF Hackers Toolbox
Capture the Flag (CTF) are information security challenges. They are fun, but they also provide a opportunity to practise for real-world security challenges.
In this talk we present the concept of CTF. We focus on some tools used by our team, which can also be used to solve real-world problems.
More Related Content
What's hot
Git Sensitive Data
Git can unintentionally store sensitive data like passwords or keys in its commit history. While commands like filter-branch can remove sensitive data from the local history, it may still be retrievable from remote repositories unless the history is rewritten there as well. The safest approach is to change all credentials and remove the local git repository entirely.
TDDBC お題
The document describes a WordFilter class that can detect and censor sensitive words in strings. It allows specifying words to censor, and will replace matches with <censored> in the censor method output or return true/false from the detect method. The filter is designed to find and obscure matches without disturbing surrounding context.
ZeroMQ Is The Answer: DPC 11 Version
This document provides an overview of 0MQ and examples of how to use it with PHP. It introduces 0MQ patterns like request/response, pub/sub, queue, and pipeline. Code snippets in PHP demonstrate implementing these patterns using 0MQ sockets. Additional resources for learning more about 0MQ and using it with PHP are provided at the end.
How to stand on the shoulders of giants
The slides from my keynote at PHP NW 2011, about how every great breakthrough is built on the work that has come before it.
All I know about rsc.io/c2go
This document discusses using the C to Go translation tool c2go to translate C code implementing quicksort algorithms into Go code. It provides examples of translating simple quicksort C code, improving the translation by using a configuration file, and how c2go handles standard C functions like qsort by translating them to their Go equivalents. The examples demonstrate how c2go can generate valid Go code from C code but may require some manual fixes or configuration to handle certain data structures or language differences.
Windows shutdown virus source code c++
This C code defines functions to check if a computer system is already infected by a virus by looking for a file called "sysres.exe" on drives C, D, E, and F. If the file is not found, the virus file will copy itself to "sysres.exe" on one of the drives and add it to the registry run key so that it executes on startup. If the system is already infected, it will just restart the computer.
Tgh.pl
This Perl script connects to an IRC server and channel to act as a bot. It forks multiple processes and uses these to execute system commands. The bot responds to commands from privileged users, executing commands or stopping processes. It parses IRC messages and routes commands for system execution or to send responses. Privileged users can start and stop the bot's processes through IRC commands.
Combine vs RxSwift
The document contains code examples that demonstrate how to use RxSwift and Combine to create and subscribe to subjects, handle events and threads, and dispose of subscriptions. Specifically, it shows:
1. Creating PublishSubjects and PassthroughSubjects and subscribing to map and print events.
2. Creating BehaviorSubjects and CurrentValueSubjects, assigning initial values, and subscribing to print values.
3. Creating DisposeBags and Cancelables to clear subscriptions and resources.
4. Using operators like subscribeOn, observeOn, and receiveOn to control thread handling and scheduling.
Linux Command Line
The document lists several dangerous Linux commands that could damage a system, as well as some basic Linux commands. It then discusses Linux file permissions and provides examples of changing permissions using chmod. Finally, it describes how to crack Windows passwords by mounting a Windows partition and using chntpw on the SAM file.
PHPerのためのPerl入門@ Kansai.pm#12
The document provides instructions for installing perlbrew and cpanminus on a system. It describes downloading and installing perlbrew to manage multiple perl versions. It also shows how to download and install cpanminus, which is a utility for installing Perl modules from CPAN.
NUMOSS 4th Week - Commandline Tutorial
The document lists several dangerous commands that can be run on a Linux or Unix system and cause data loss or system instability. It also provides basic commands for file operations, package management, networking tasks and changing permissions and passwords. The dangerous commands include deleting all files in the root folder, formatting a partition, executing a fork bomb to overload the system, and overwriting the file system on a designated device. The basic commands cover file listing, copying, downloading, creating directories and viewing directory information. It also explains Linux file permissions in terms of read, write and execute attributes.
ZeroMQ Is The Answer
Using Mikko Koppanen's PHP ZMQ extension we will look at how you can easily distribute work to background processes, provide flexible service brokering for your next service oriented architecture, and manage caches efficiently and easily with just PHP and the ZeroMQ libraries. Whether the problem is asynchronous communication, message distribution, process management or just about anything, ZeroMQ can help you build an architecture that is more resilient, more scalable and more flexible, without introducing unnecessary overhead or requiring a heavyweight queue manager node.
Hashing endereçamento aberto - main
This document contains the code for a Java program that implements a menu-driven hash table. The program displays a menu with options to initialize, insert, remove, list, and exit the hash table. It uses a Scanner to get the user's menu selection, then calls the appropriate method on an operacoes class based on the switch statement. The program loops until the user selects the exit option.
ZeroMQ: Messaging Made Simple
This document provides an overview of 0MQ (also known as ZeroMQ), a messaging library that enables various messaging patterns like request/reply, publish/subscribe, and queueing. It includes code examples in multiple languages like Erlang, Python, and PHP demonstrating how to implement common 0MQ patterns. Links are also provided for additional 0MQ resources.
Hands on Hadoop
My intro talk for hadoop and how to use it with python streaming.
Code is here : http://github.com/ptarjan/hands-on-hadoop-tutorial/
01 คำสั่งแสดงผล ในภาษาซี
The C code includes header files, defines a main function, and uses printf statements to output three messages to the console: "Hello!!", "My Name is Panatchakorn", and "I Love C Language". It then calls getch to pause the program before it exits.
Crack.ba
This batch script cracks passwords for RAR files by repeatedly using the Unrar.exe tool to extract files with incrementing password guesses, deleting the extraction directory and Unrar.exe file upon finding the correct password. It gets the RAR file name and path from the user, checks for validity, and then starts an infinite loop extracting with passwords from 0 to infinity until extraction succeeds without errors.
Doubly Linked List
This document describes functions for a doubly linked list data structure in C including:
1) Functions for inserting nodes at the beginning, end, and at a specified position before or after a node.
2) Functions for deleting nodes from the beginning, end, and at a specified position.
3) A display function to print out the elements of the linked list.
4) Additional functions like creating new nodes, checking for invalid positions, and calculating the length.
Linear queue
This C program implements a queue data structure using an array. It defines functions for enqueue, dequeue, and display operations on the queue. The main function contains a menu loop that calls the appropriate queue function based on the user's choice and displays messages for the queue status and operations.
What is suid, sgid and sticky bit
The document discusses SUID, SGID, and sticky bits in Linux file permissions. It provides examples of setting these permissions on files and directories and observing the effects. Specifically, it shows:
- Setting the SUID bit on /usr/bin/su allows non-root users to run su with root privileges
- Setting the SGID bit on a directory gives create and write permissions to all members of the directory's group
- Setting the sticky bit on a directory prevents deletion of files within it by non-owners
What's hot (20)
Similar to Shell Scripting
Unix 5 en
This document contains a lecture on working with arrays, scripts, and SSH/SCP in UNIX systems. It discusses special variables used in scripts, how to define and manipulate arrays, examples of useful scripts for renaming files, backing up data, and extracting video files from DVDs, and how to use SSH to securely connect to remote systems and SCP to securely transfer files between systems. It also covers generating and using public/private key pairs for passwordless SSH login.
A CTF Hackers Toolbox
Capture the Flag (CTF) are information security challenges. They are fun, but they also provide a opportunity to practise for real-world security challenges.
In this talk we present the concept of CTF. We focus on some tools used by our team, which can also be used to solve real-world problems.
Naughty And Nice Bash Features
While Bash might be very helpful, it can also be extremely destructive. In this talk we'll go over the nice and naughty aspects of Bash.
Linux 系統管理與安全：基本 Linux 系統知識
The document provides information on systemd service management commands. It shows examples of using systemctl to start, stop, restart, and check the status of the httpd service. It also displays the output of systemctl status httpd which shows details about the loaded unit, active state, process IDs, and log entries for the Apache HTTP Server service.
Os Fetterupdated
This document discusses using Perl and Ruby procedural languages inside PostgreSQL. It provides examples of using PL/Perl and PL/Ruby to validate barcode numbers and email addresses, including regular expressions for email validation in Perl. The document also discusses creating custom data types in PostgreSQL like GTIN and email that implement validation functions using procedural languages.
Marko Gargenta_Remixing android
The document provides instructions for customizing and building a new Android device called Marakana Alpha. It describes generating custom platform signing keys, building the initial device code, and adding optional components like a custom kernel. Key steps include registering the new device in the build system, generating signing keys, compiling the code, and running it on an emulator or device. The goal is to remix Android by building a customized version with new features while maintaining compatibility.
Introduction to Assembly Language
The document discusses assembly language and its relationship to computer architecture and programming. It covers the different views of computer design including the programmer's view through instruction set architecture and the logic designer's view through machine organization. It also summarizes how a high-level language program is converted into executable files through compilation, assembly, and linking.
Keynote 1 - Engineering Software Analytics Studies
Performing quantitative software analytics studies can be an immensely rewarding activity for scientists performing empirical research. However, such studies often pose numerous engineering challenges. The researcher must hunt down appropriate data sets, devise bespoke collection and processing tools, and optimise performance to match the size of the collected data. I will discuss principles and strategies that can be used to deal with these problems, and present examples of associated tools and techniques. Some particularly effective strategies associated with data set construction involve recursion, web searching, synthesis, probing, instrumentation, and the nurturing of alliances. On the processing front approaches include the opportunistic scavenging of tool front-ends, the exploratory development of pipelines, as well as the exploitation of tool interoperability, scripting languages, and their rich libraries. The required performance can be obtained through parallelism, stream processing, the judicious use of low-level facilities, and the choice of appropriate samples. I will finish the presentation with an overview of open problems and challenges in software analytics in vertical domains, data analysis, and under-represented stakeholders.
Cleanliness is Next to Domain-Specificity
This document discusses domain-specific languages (DSLs) and how programming languages can influence thought. It provides examples of Ruby code for querying a travel API using different approaches, from low-level HTTP requests to a more domain-focused interface. The document concludes by encouraging developers to start modestly, stay focused on the problem domain, and iteratively improve.
Cleanliness is Next to Domain-Specificity
Ben Scofield discusses linguistics, DSLs in Ruby, and how writing domain-specific code improves your software
Noah Zoschke at Waza 2013: Heroku Secrets
Heroku enables developers to deploy applications using modern software design patterns for software-as-a-service. Applications benefit from continuous deployment with frequent code releases, easy management of dependencies, and configurability through environment variables. Heroku provides tools for managing data and services for building, running, and monitoring applications.
R57php 1231677414471772-2
This PHP script is a remote shell that allows execution of system commands and file operations. It includes options to set the language, enable/disable authentication, and specify login credentials. The script sets various PHP configurations, handles authentication, and provides a basic interface for directory listing, file browsing, execution of commands, and downloading/uploading of files.
What is systemd? Why use it? how does it work? - devoxx france 2017
Talk with @clementd.
The great war is ended, systemd won over initd (the old), upstart and the other, and now it's the mainstream choice. But Why? What is the interest? How difficult is it to do a configuration on the systemd world? How does it work? Can I replace CRON on it?
Performance Wins with BPF: Getting Started
Keynote by Brendan Gregg for the eBPF summit, 2020. How to get started finding performance wins using the BPF (eBPF) technology. This short talk covers the quickest and easiest way to find performance wins using BPF observability tools on Linux.
start_printf: dev/ic/com.c comstart()
The document discusses code for serial port (com) device drivers in FreeBSD. It shows code from the comstart() function, which is called by the tty layer when there is outgoing data to transmit. Comstart() grabs the data from the tty queue and sets up the com_softc structure to start transmission. It then calls the chip-specific transmit function. The com_softc structure contains a pointer to the associated tty structure.
PHP in 2018 - Q4 - AFUP Limoges
This document summarizes the history and future of PHP. It discusses the creators of PHP (Rasmus Lerdorf, Zeev Suraski, John Morris) and outlines the major versions released from PHP 1.0 in 1995 to the upcoming PHP 8.0, which will include features like FFI, JIT compilation, and asynchronous programming. It also previews potential features for future PHP versions such as OpCache core improvements and extending the instanceof operator.
Perl basics for Pentesters
This presentation is for those students and IT professionals who have basic programming knowledge and want to learn Perl basics for Pentesting.
We have explained minimal Perl basics which a pentester should know to write,read,modify Perl scripts for Pentesting like data type, comparison operator, loop controls, minimal CPAN modules related to web and networking, perl scripts in Kali and some demo
Dtrace и немного магии
The document discusses the Dtrace tool for debugging, profiling, and monitoring systems. It provides an overview of Dtrace's key components like the D language, probes, consumers, and providers. Examples are given for using Dtrace for debugging issues by tracing function calls, gathering statistics on memory allocation, and visualizing process flow.
Bash tricks
Jokingly casual introduction that scales quickly to the obscure powers of bash script.
Intended to call the attention of devs and ops, and bridge the perception of the complexity on each other sides with things too familiar and yet too far out for both.
A reminder of the capacity we have in our hands if we dare to use it.
It is in portuguese, but the language that counts here is bash script.
Capital onehadoopclass
The document describes setting up Hadoop in pseudo-distributed mode on a CentOS virtual machine instance. It details steps like creating a user account, installing Java and Hadoop, formatting the namenode, starting HDFS and YARN daemons, creating HDFS directories, and running a sample Pi estimation MapReduce job.
Similar to Shell Scripting (20)
Keynote 1 - Engineering Software Analytics Studies
Keynote 1 - Engineering Software Analytics Studies
What is systemd? Why use it? how does it work? - devoxx france 2017
What is systemd? Why use it? how does it work? - devoxx france 2017
More from dcarneir
Introdução ao desenvolvimento em hardware
O documento discute diferentes tipos de placas de desenvolvimento, incluindo placas microcontroladas como Arduino e Launchpad da Texas Instruments, bem como placas microprocessadas como Raspberry Pi e BeagleBone Black. As placas microcontroladas são mais fáceis de aprender e possuem maior quantidade de shields, enquanto as microprocessadas são melhores para projetos maiores ou com interface gráfica, embora dependam de conhecimento do sistema operacional.
Bitcoin
A Bitcoin é uma moeda virtual descentralizada que não é controlada por bancos ou países. Sua história começou em 2009 com a criação do Bitcoin e o primeiro intercâmbio em 2010. Desde então, sua cotação variou muito, chegando a valer uma pizza em 2010 e US$ 1.200 em 2013. Sua tecnologia se baseia na cadeia de blocos que registra todas as transações de forma pública e anônima.
Certificados digitais
Um certificado digital identifica o autor de um documento digital através de algoritmos criptográficos. Pode ser obtido de uma autoridade certificadora reconhecida e utilizado para assinar documentos eletrônicos de forma segura, conferindo autenticidade, integridade e não repudiação desde 2001. Os certificados contêm informações do titular, validade, chave pública e assinatura da entidade emissora.
Awk
O documento descreve as principais estruturas e funções do awk para processamento de arquivos de texto. Apresenta como executar o awk, sua estrutura básica com blocos BEGIN, seletores e END, além de estruturas de controle, arrays, variáveis especiais e funções para strings, matemática e I/O. Fornece também exemplos como contar linhas, imprimir campos e realizar cálculos com dados.
Shell Scripting
Quinta parte da apresentação sobre Shell Scripting realizada na Bluesoft
Confira o video em http://www.vimeo.com/bluesoft
Shell Scripting
Terceira parte da apresentação sobre Shell Scripting realizada na Bluesoft
Confira o video em http://www.vimeo.com/16967406
Shell Scripting
O documento descreve diversos comandos internos do shell script, incluindo echo para exibir parâmetros, alias para definir apelidos, source para executar comandos no mesmo shell, fg e bg para retomar processos suspensos, kill e killall para enviar sinais a processos, e comandos de navegação como pwd, cd e pushd/popd. Também menciona printf para formatação de saída e read para leitura de entrada.
Shell Scripting
Primeira parte da apresentação sobre Shell Scripting realizada na Bluesoft.
Confira o video em http://www.vimeo.com/15391655
FLOSS
O documento discute os tipos de licenças de software livre e de código aberto, como a licença pública geral GNU, Creative Commons e outras. Ele explica as diferenças entre software livre e de código aberto e fornece diretrizes sobre como escolher e aplicar uma licença FLOSS a um projeto de software.
IPv6
O documento discute a necessidade de adoção do IPv6 devido ao esgotamento dos endereços IPv4 disponíveis. Apresenta estatísticas mostrando o rápido crescimento da Internet e dispositivos conectados, e explica que os blocos /8 de endereços IPv4 disponíveis estão acabando, restando apenas 16 blocos, ou 6,25% do total. Também resume melhorias trazidas pelo IPv6 como autoconfiguração, melhor desempenho e mobilidade.
Bancos de dados No-SQL e afins
NOSQL são bancos de dados não relacionais que surgiram para atender necessidades de escalabilidade e performance. Eles permitem armazenamento de dados sem esquema pré-definido e distribuição horizontal em múltiplos servidores. Exemplos incluem bancos de dados em coluna, chave-valor e documentos como Cassandra, HBase, MongoDB e CouchDB.
More from dcarneir (13)
Recently uploaded
"Choosing proper type of scaling", Olena Syrota
Imagine an IoT processing system that is already quite mature and production-ready and for which client coverage is growing and scaling and performance aspects are life and death questions. The system has Redis, MongoDB, and stream processing based on ksqldb. In this talk, firstly, we will analyze scaling approaches and then select the proper ones for our system.
Crafting Excellence: A Comprehensive Guide to iOS Mobile App Development Serv...
Crafting Excellence: A Comprehensive Guide to iOS Mobile App Development Serv...Pitangent Analytics & Technology Solutions Pvt. Ltd
Discover top-tier mobile app development services, offering innovative solutions for iOS and Android. Enhance your business with custom, user-friendly mobile applications.5th LF Energy Power Grid Model Meet-up Slides
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
Principle of conventional tomography-Bibash Shahi ppt..pptx
before the computed tomography, it had been widely used.
Apps Break Data
How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
GraphRAG for LifeSciences Hands-On with the Clinical Knowledge Graph
Tomaz Bratanic
Graph ML and GenAI Expert - Neo4j
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
The Microsoft 365 Migration Tutorial For Beginner.pptx
This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
Harnessing the Power of NLP and Knowledge Graphs for Opioid Research
Gursev Pirge, PhD
Senior Data Scientist - JohnSnowLabs
Leveraging the Graph for Clinical Trials and Standards
Katja Glaß
OpenStudyBuilder Community Manager - Katja Glaß Consulting
Marius Conjeaud
Principal Consultant - Neo4j
Fueling AI with Great Data with Airbyte Webinar
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
GNSS spoofing via SDR (Criptored Talks 2024)
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
Skybuffer SAM4U tool for SAP license adoption
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...Edge AI and Vision Alliance
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/temporal-event-neural-networks-a-more-efficient-alternative-to-the-transformer-a-presentation-from-brainchip/
Chris Jones, Director of Product Management at BrainChip , presents the “Temporal Event Neural Networks: A More Efficient Alternative to the Transformer” tutorial at the May 2024 Embedded Vision Summit.
The expansion of AI services necessitates enhanced computational capabilities on edge devices. Temporal Event Neural Networks (TENNs), developed by BrainChip, represent a novel and highly efficient state-space network. TENNs demonstrate exceptional proficiency in handling multi-dimensional streaming data, facilitating advancements in object detection, action recognition, speech enhancement and language model/sequence generation. Through the utilization of polynomial-based continuous convolutions, TENNs streamline models, expedite training processes and significantly diminish memory requirements, achieving notable reductions of up to 50x in parameters and 5,000x in energy consumption compared to prevailing methodologies like transformers.
Integration with BrainChip’s Akida neuromorphic hardware IP further enhances TENNs’ capabilities, enabling the realization of highly capable, portable and passively cooled edge devices. This presentation delves into the technical innovations underlying TENNs, presents real-world benchmarks, and elucidates how this cutting-edge approach is positioned to revolutionize edge AI across diverse applications.HCL Notes and Domino License Cost Reduction in the World of DLAU
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Join us to learn how UiPath Apps can directly and easily interact with prebuilt connectors via Integration Service--including Salesforce, ServiceNow, Open GenAI, and more.
The best part is you can achieve this without building a custom workflow! Say goodbye to the hassle of using separate automations to call APIs. By seamlessly integrating within App Studio, you can now easily streamline your workflow, while gaining direct access to our Connector Catalog of popular applications.
We’ll discuss and demo the benefits of UiPath Apps and connectors including:
Creating a compelling user experience for any software, without the limitations of APIs.
Accelerating the app creation process, saving time and effort
Enjoying high-performance CRUD (create, read, update, delete) operations, for
seamless data management.
Speakers:
Russell Alfeche, Technology Leader, RPA at qBotic and UiPath MVP
Charlie Greenberg, host
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
Recently uploaded (20)
Crafting Excellence: A Comprehensive Guide to iOS Mobile App Development Serv...
Crafting Excellence: A Comprehensive Guide to iOS Mobile App Development Serv...
Principle of conventional tomography-Bibash Shahi ppt..pptx
Principle of conventional tomography-Bibash Shahi ppt..pptx
GraphRAG for LifeSciences Hands-On with the Clinical Knowledge Graph
GraphRAG for LifeSciences Hands-On with the Clinical Knowledge Graph
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
The Microsoft 365 Migration Tutorial For Beginner.pptx
The Microsoft 365 Migration Tutorial For Beginner.pptx
Harnessing the Power of NLP and Knowledge Graphs for Opioid Research
Harnessing the Power of NLP and Knowledge Graphs for Opioid Research
Leveraging the Graph for Clinical Trials and Standards
Leveraging the Graph for Clinical Trials and Standards
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
HCL Notes and Domino License Cost Reduction in the World of DLAU
HCL Notes and Domino License Cost Reduction in the World of DLAU
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
Shell Scripting
- 1. Daniel Carneiro Shell Script Parte VI
- 3. Para remover muitos arquivos (500000+): rm f* bash: /bin/rm: Lista de argumentos muito longa for i in f*; do rm $i; done find -name 'f*' -exec rm {} for i in $( find -name 'f*'); do rm $i; done
- 4. Buscar um aplicativo e matá-lo ps aux (listar processos) USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 0.0 2792 1648 ? Ss 19:27 0:00 /sbin/init root 2 0.0 0.0 0 0 ? S 19:27 0:00 [kthreadd] root 3 0.0 0.0 0 0 ? S 19:27 0:01 [migration/0] root 4 0.0 0.0 0 0 ? S 19:27 0:00 [ksoftirqd/0] root 5 0.0 0.0 0 0 ? S 19:27 0:00 [watchdog/0] root 6 0.0 0.0 0 0 ? S 19:27 0:01 [migration/1] root 7 0.0 0.0 0 0 ? S 19:27 0:00 [ksoftirqd/1] root 8 0.0 0.0 0 0 ? S 19:27 0:00 [watchdog/1] root 9 0.0 0.0 0 0 ? S 19:27 0:00 [events/0] root 10 0.0 0.0 0 0 ? S 19:27 0:00 [events/1] . . . daniel 2762 35.4 2.4 73372 70772 pts/0 Ss 22:12 22:09 bash daniel 12969 0.0 0.0 2716 1040 pts/1 R+ 23:14 0:00 ps aux
- 5. Buscar um aplicativo e matá-lo pids= $( ps aux| grep pts/1| grep -v grep| tr -s " "| cut -d " " -f 2 ) for i in $pids; do kill $i; done
- 6. Install Script #!/bin/bash SID= ${1:-$ORACLE_SID} echo Creating instance $SID read -r -p "Are you sure? [y/N] " response response= ${response,,} # tolower if [[ $response =~ ^(yes|y)$ ]]; then echo creating... $SID else exit fi
- 7. Install Script mkdir $SID cp pass.sql $SID cat init.ora| sed -e "s/ORACLE_SID/ $SID /g" > $SID /init.ora cat CreateDB.sql| sed -e "s/ORACLE_SID/ $SID /g" > $SID /CreateDB.sql cat CreateDBFiles.sql| sed -e "s/ORACLE_SID/ $SID /g" > $SID /CreateDBFiles.sql cat CreateDBCatalog.sql| sed -e "s/ORACLE_SID/ $SID /g" > $SID /CreateDBCatalog.sql cat postDBCreation.sql| sed -e "s/ORACLE_SID/ $SID /g" > $SID /postDBCreation.sql
- 11. Obrigado
Editor's Notes
- tempo de execução: 16s versus 91m find procura subdirs
- Diferença entre ' e “