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Linux Administration

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Harish1983

The document discusses various topics related to Linux administration. It covers Unix system architecture, the Linux command line, files and directories, running programs, wildcards, text editors, shells, command syntax, filenames, command history, paths, hidden files, home directories, making directories, copying and renaming files, and more. It provides an overview of key Linux concepts and commands for system administration.

EducationTechnology
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Linux administration A.HARISH KUMAR
Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Topics of Discussion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Topics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Topics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Topics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS ,[object Object],[object Object],[object Object]
Unix System Architecture
[object Object],[object Object],Unix System Architecture
Unix Philosophy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What is Linux? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Using a Linux System ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Linux Command Line ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logging Out ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Command Syntax ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Files ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Creating Files with cat ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Displaying Files’ Contents with cat ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Deleting Files with rm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Unix Command Feedback ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Copying and Renaming Files with cp and mv ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Filename Completion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Command History ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Files and Directories ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Examples of Absolute Paths ,[object Object],[object Object],[object Object],[object Object],[object Object]
Current Directory ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Making and Deleting Directories ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Relative Paths ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hidden Files ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Paths to Home Directories ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Running Programs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Specifying Files with Wildcards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Graphical and Text Interfaces ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Text Editors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Shells ,[object Object],[object Object],[object Object],[object Object]
The Bash Shell ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Shell Commands ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Command-Line Arguments ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Syntax of Command-Line Options ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Summary of Bash Editing Keys ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Working with Text Files ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Filesystem Objects ,[object Object],[object Object],[object Object],[object Object]
Directory and File Names ,[object Object],[object Object],[object Object],[object Object]
File Extensions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Filename Completion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Copying Files with cp ,[object Object],[object Object],[object Object],[object Object],[object Object]
Moving Files with mv ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Deleting Files with rm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Making Directories with mkdir ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Removing Directories with rmdir ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Standard Files ,[object Object],[object Object]
Standard Input ,[object Object],[object Object],[object Object],[object Object]
Standard Output ,[object Object],[object Object],[object Object],[object Object]
Pipes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Searching Files with grep ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pattern Matching ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Job Control ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Jobs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What is a Process? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Process Properties ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Parent and Child Processes ,[object Object],[object Object]
About Quoting ,[object Object],[object Object],[object Object],[object Object]
Quoting: Single Quotes ,[object Object],[object Object],[object Object],[object Object],[object Object]
Quoting: Backslashes ,[object Object],[object Object],[object Object],[object Object]
Quoting: Double Quotes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Shell Programming ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Filesystems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Symbolic Links ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Examining and Creating Symbolic Links ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hard Links ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Symlinks and Hard Links Illustrated ,[object Object],[object Object]
Examining and Creating Hard Links ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Users and Groups ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The Superuser: Root ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Changing File Ownership with chown ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Changing File Group Ownership with chgrp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Basic Concepts: Permissions on Files ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Basic Concepts: Permissions on Directories ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Concepts: Disks and Partitions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Disk Naming ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Using fdisk ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Making New Partitions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Changing Partition Types ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Making Filesystems with mkfs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mounting Filesystems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mounting a Filesystem: mount ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mounting Other Filesystems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Unmounting a Filesystem: umount ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Configuring mount: /etc/fstab ,[object Object],[object Object],[object Object],[object Object],[object Object]
Sample /etc/fstab ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Filesystem Types ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mount Options ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Filesystem Concepts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Monitoring Space: df ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Monitoring Inodes: df ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Monitoring Disk Usage: du ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
du Options ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Finding and Repairing Filesystem Corruption: fsck ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Running fsck ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Unix Filesystem Layout ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The Filesystem Hierarchy Standard ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Static and Dynamic Data ,[object Object],[object Object],[object Object],[object Object],[object Object]
Overview of the FHS
FHS: Installed Software ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
FHS: Other Directories Under /usr ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
FHS: Directories Under /var ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
FHS: Other Directories ,[object Object],[object Object],[object Object],[object Object]
The type Built-in Command ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Updating the locate Database ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
updatedb.conf ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What are Quotas? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Displaying Quota Limits: quota ,[object Object],[object Object],[object Object],[object Object]
Options in /etc/fstab ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
edquota ,[object Object],[object Object],[object Object],[object Object],[object Object]
repquota ,[object Object],[object Object],[object Object],[object Object],[object Object]
Boot Loaders ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
LILO ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Sample lilo.conf File ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Selecting What to Boot ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Other Ways of Starting Linux ,[object Object],[object Object],[object Object]
Boot Messages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Understanding Runlevels ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Typical Runlevels ,[object Object],[object Object],[object Object],[object Object],[object Object]
Single-User Mode and sulogin ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Shutting Down and Restarting the System ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Setting the Default Runlevel ,[object Object],[object Object],[object Object],[object Object]
Selecting a Different Runlevel at Bootup ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Manual Pages ,[object Object],[object Object],[object Object],[object Object],[object Object]
Navigating Within Manual Pages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Sections of a Manual Page ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
syslog ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
/etc/syslog.conf ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Examining Logs: less and grep ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
At Commands ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Managing At Commands ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Simple Cron Job Specification ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Crontab Format ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
/etc/crontab ,[object Object],[object Object],[object Object],[object Object],[object Object]
User Crontabs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Cron Job Output ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
THANK U

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