AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
CNIT 127 Ch 4: Introduction to format string bugsSam Bowne
Slides for a college course at City College San Francisco. Based on "The Shellcoder's Handbook: Discovering and Exploiting Security Holes ", by Chris Anley, John Heasman, Felix Lindner, Gerardo Richarte; ASIN: B004P5O38Q.
Instructor: Sam Bowne
Class website: https://samsclass.info/127/127_S18.shtml
Slides for a college course at City College San Francisco. Based on "The Shellcoder's Handbook: Discovering and Exploiting Security Holes ", by Chris Anley, John Heasman, Felix Lindner, Gerardo Richarte; ASIN: B004P5O38Q.
Instructor: Sam Bowne
Class website: https://samsclass.info/127/127_S18.shtml
Why don't we write enough tests? Is it because testing is hard or we are lazy? Maybe there is no budget for it? There has to be a better way than not noticing an elephant in the room and not writing them at all.In this presentation you will see how to avoid common traps and follow best practices to take a step forward towards mastering unit tests in practice.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
CNIT 127 Ch 4: Introduction to format string bugsSam Bowne
Slides for a college course at City College San Francisco. Based on "The Shellcoder's Handbook: Discovering and Exploiting Security Holes ", by Chris Anley, John Heasman, Felix Lindner, Gerardo Richarte; ASIN: B004P5O38Q.
Instructor: Sam Bowne
Class website: https://samsclass.info/127/127_S18.shtml
Slides for a college course at City College San Francisco. Based on "The Shellcoder's Handbook: Discovering and Exploiting Security Holes ", by Chris Anley, John Heasman, Felix Lindner, Gerardo Richarte; ASIN: B004P5O38Q.
Instructor: Sam Bowne
Class website: https://samsclass.info/127/127_S18.shtml
Why don't we write enough tests? Is it because testing is hard or we are lazy? Maybe there is no budget for it? There has to be a better way than not noticing an elephant in the room and not writing them at all.In this presentation you will see how to avoid common traps and follow best practices to take a step forward towards mastering unit tests in practice.
Slides for a college course at City College San Francisco. Based on "The Shellcoder's Handbook: Discovering and Exploiting Security Holes ", by Chris Anley, John Heasman, Felix Lindner, Gerardo Richarte; ASIN: B004P5O38Q.
Instructor: Sam Bowne
Class website: https://samsclass.info/127/127_F19.shtml
Slides for a college course at City College San Francisco. Based on "The Shellcoder's Handbook: Discovering and Exploiting Security Holes ", by Chris Anley, John Heasman, Felix Lindner, Gerardo Richarte; ASIN: B004P5O38Q.
Instructor: Sam Bowne
Class website: https://samsclass.info/127/127_F19.shtml
Slides for a college course at City College San Francisco. Based on "The Shellcoder's Handbook: Discovering and Exploiting Security Holes ", by Chris Anley, John Heasman, Felix Lindner, Gerardo Richarte; ASIN: B004P5O38Q.
Instructor: Sam Bowne
Class website: https://samsclass.info/127/127_S18.shtml
These are my slides from a mini Clojure tutorial presented at the "7 Languages in 7 Months" meetup group. The first part of the presentation faithfully presents material from Bruce Tate book, and the second part covers the more advanced topics of state management and macros
Slides for a college course at City College San Francisco. Based on "The Shellcoder's Handbook: Discovering and Exploiting Security Holes ", by Chris Anley, John Heasman, Felix Lindner, Gerardo Richarte; ASIN: B004P5O38Q.
Instructor: Sam Bowne
Class website: https://samsclass.info/127/127_F19.shtml
Slides for a college course at City College San Francisco. Based on "The Shellcoder's Handbook: Discovering and Exploiting Security Holes ", by Chris Anley, John Heasman, Felix Lindner, Gerardo Richarte; ASIN: B004P5O38Q.
Instructor: Sam Bowne
Class website: https://samsclass.info/127/127_F19.shtml
Slides for a college course at City College San Francisco. Based on "The Shellcoder's Handbook: Discovering and Exploiting Security Holes ", by Chris Anley, John Heasman, Felix Lindner, Gerardo Richarte; ASIN: B004P5O38Q.
Instructor: Sam Bowne
Class website: https://samsclass.info/127/127_S18.shtml
These are my slides from a mini Clojure tutorial presented at the "7 Languages in 7 Months" meetup group. The first part of the presentation faithfully presents material from Bruce Tate book, and the second part covers the more advanced topics of state management and macros
Task Runners are a way to automate anything you want from the command line using CFML! You write any sort of logic you want, just like you would with bash scripts, Node, or Python, except you can do it with your favorite language. Task Runners come with dozens of helpful utilities for downloading files, interacting with the user, printing formatted text, and interacting with the file system. Task Runners only require CommandBox to be installed and work great inside Docker as well. We'll cover many of the features available including using modules and lifecycle methods!
The why and how of moving to php 5.4/5.5Wim Godden
With PHP 5.5 out and many production environments still running 5.2 (or older), it's time to paint a clear picture on why everyone should move to 5.4 and 5.5 and how to get code ready for the latest version of PHP. In this talk, we'll look at some handy tools and techniques to ease the migration.
Preparing for the next PHP version (5.6)Damien Seguy
With versions stretching from 5.3 to 5.6, PHP has several major published versions, that require special attention when migrating. Beyond checking for compilation, the code must be reviewed to avoid pitfalls like obsoletes functions, new features, change in default parameters or behavior. We'll set up a checklist of such traps, and ways to find them in the code and be reading for PHP 5.6.
The fundamentals and advance application of Node will be covered. We will explore the design choices that make Node.js unique, how this changes the way applications are built and how systems of applications work most effectively in this model. You will learn how to create modular code that’s robust, expressive and clear. Understand when to use callbacks, event emitters and streams.
This lecture discusses a group of techniques to use commands output/Input to feed into other commands or into files. It also covers argument expansion and quoting
Check the other Lectures and courses in
http://Linux4EnbeddedSystems.com
or Follow our Facebook Group at
- Facebook: @LinuxforEmbeddedSystems
Lecturer Profile:
- https://www.linkedin.com/in/ahmedelarabawy
This full day course will give you a hands-on, deep dive into React Native. In this course, you will learn how to build cross-platform mobile applications from scratch using Facebook's React Native.
Are you facing problem with your LAPTOP or TABLET, searching one permenant solutation for all these issues. Comeon step into Amcsquare is the Solutation for all your problems.
Any laptop or desktop problem step into AMCSQUARE . Looking for an geniune spare parts and top class service at your door steps is AMCSQUARE IT SERVICES .
AMC gives the flexibility and power to optimize the business process for its maximum efficiency and spur clients IT structure to be both resilient and agile.
learn JAVA at ASIT with a placement assistance.ASIT Education
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
AMC Squarelearning Bangalore is the best training institute for a career development. it had students from various parts of the country and even few were from West African countries.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
1. Learn RUBY Programming at
AMC Square Learning
•An interpreted language
• a.k.a dynamic, scripting
• e.g., Perl
•Object Oriented
• Single inheritance
•High level
• Good support for system calls, regex and CGI
•Relies heavily on convention for syntax
2. Hello World
#!/usr/bin/env ruby
puts “Hello world”
$ chmod a+x helloWorld.rb
$ helloWorld.rb
Hello world
$
• shell script directive to run ruby
• Needed to run any shell script
• Call to method puts to write out
“Hello world” with CR
• Make program executable
3. Basic Ruby
•Everything is an object
•Variables are not typed
•Automatic memory allocation and garbage
collection
•Comments start with # and go to the end of the line
• You have to escape # if you want them elsewhere
•Carriage returns mark the end of statements
•Methods marked with def … end
4. Control structures
If…elsif…else…end
case when <condition> then
<value>… else… end
unless <condition> … end
while <condition>… end
until <condition>… end
#.times (e.g. 5.times())
#.upto(#) (e.g. 3.upto(6))
<collection>.each {block}
• elsif keeps blocks at same level
• case good for checks on multiple
values of same expression; can use
ranges
grade = case score
when 90..100 then “A”
when 80..90 then “B”
else “C”
end
• Looping constructs use end (same as
class definitions)
• Various iterators allow code blocks to
be run multiple times
5. Ruby Naming Conventions
• Initial characters
• Local variables, method parameters, and method names
lowercase letter or underscore
• Global variable $
• Instance variable @
• Class variable @@
• Class names, module names, constants uppercase letter
• Multi-word names
• Instance variables separate words with underscores
• Class names use MixedCase
• End characters
• ? Indicates method that returns true or false to a query
• ! Indicates method that modifies the object in place rather than
returning a copy (destructive, but usually more efficient)
6. Another Example
class Temperature
Factor = 5.0/9
def store_C(c)
@celsius = c
end
def store_F(f)
@celsius = (f - 32)*Factor
end
def as_C
@celsius
end
def as_F
(@celsius / Factor) + 32
end
end # end of class definition
Factor is a constant
5.0 makes it a float
4 methods that get/set an
instance variable
Last evaluated statement is
considered the return
value
7. Second Try
class Temperature
Factor = 5.0/9
attr_accessor :c
def f=(f)
@c = (f - 32) * Factor
end
def f
(@c / Factor) + 32
end
def initialize (c)
@c = c
end
end
t = Temperature.new(25)
puts t.f # 77.0
t.f = 60 # invokes f=()
puts t.c # 15.55
attr_accessor creates setter and
getter methods automatically for a
class variable
initialize is the name for a
classes’ constructor
Don’t worry - you can always override
these methods if you need to
Calls to methods don’t need () if
unambiguous
8. Input and Output - tsv files
f = File.open ARGV[0]
while ! f.eof?
line = f.gets
if line =~ /^#/
next
elsif line =~ /^s*$/
next
else
puts line
end
end
f.close
ARGV is a special array
holding the command-
line tokens
Gets a line
If it’s not a comment or a
blank line
Print it
9. Processing TSV filesh = Hash.new
f = File.open ARGV[0]
while ! f.eof?
line = f.gets.chomp
if line =~ /^#/
next
elsif line =~ /^s*$/
next
else
tokens = line.split /t/
h[tokens[2]] = tokens[1]
end
end
f.close
keys =
h.keys.sort {|a,b| a <=> b}
keys.each {|k|
puts "#{k}t#{h[k]}" }
Declare a hash table
Get lines without n or rn - chomp
split lines into fields delimited with tabs
Store some data from each field into the
hash
Sort the keys - sort method takes a block
of code as input
each creates an iterator in which k is set
to a value at each pass
#{…} outputs the evaluated expression in
the double quoted string
10. Blocks
•Allow passing chunks of code in to methods
•Receiving method uses “yield” command to call
passed code (can call yield multiple times)
•Single line blocks enclosed in {}
•Multi-line blocks enclosed in do…end
•Can use parameters
[ 1, 3, 4, 7, 9 ].each {|i| puts i }
Keys = h.keys.sort {|a,b| a <=> b }
11. Running system commands
require 'find'
Find.find('.') do
|filename|
if filename =~ /.txt$/i
url_output =
filename.gsub(/.txt$/i, ".html")
url = `cat #{filename}`.chomp
cmd = "curl #{url} -o #{url_output}";
puts cmd
`#{cmd}`
end
end
• require reads in another
ruby file - in this case a
module called Find
• Find returns an array, we
create an iterator filename
to go thru its instances
• We create a new variable to
hold a new filename with the
same base but different .html
extension
• We use backticks `` to run a
system command and
(optionally) save the output
into a variable
• curl is a command in mac os to
retrieve a URL to a file, like wget in
unix
12. CGI example
require 'cgi'
cgi = CGI.new("html3")
size = cgi.params.size
if size > 0 # processing form
in = cgi.params['t'].first.untaint
cgi.out { cgi.html { cgi.head
cgi.body { "Welcome, #{in}!" }
} }
else
puts <<FORM
Content-type: text/html
<HTML><BODY><FORM>
Enter your name: <INPUT TYPE=TEXT
NAME=t><INPUT TYPE=SUBMIT>
</FORM></BODY></HTML>
FORM
end
• CGI requires library
• Create CGI object
• If parameters passed
• Process variable t
• untaint variables if using
them in commands
• No parameters?
• create form using here
document “<<“
13. Reflection
...to examine aspects of the program from within the program itself.
#print out all of the objects in our system
ObjectSpace.each_object(Class) {|c| puts c}
#Get all the methods on an object
“Some String”.methods
#see if an object responds to a certain method
obj.respond_to?(:length)
#see if an object is a type
obj.kind_of?(Numeric)
obj.instance_of?(FixNum)