Shell Scripting Training in Chennai

Overview of Unix/Linux Operating System

OS and Shell Identification:

• version, builds, vendors, etc

Introduction to File System and Unix Command Pipeline:

• Navigating file system.
• Relative paths, Absolute Paths.
• SHELL: Introduction to shell variables: using/creating env variables for most used directory paths.
• Detecting all the disks, used/available space and their mounted directory structure.
• Overveiw of standard Linux directory structure
• Difference between Windows and Unix Disk to Directory Structure mapping and the implications.
• Redirecting command outputs to files and intermediate files
• Finding commands, detecting type of commands, getting help for commands
• type, which, man, apropos, info, whatis, alias (read only)

File and Directory handling:

• Reading/Viewing files
• Copying, moving and deleting files, directories and directory hierarchies.
• Listing, and handling files, directories using wildcard characters
• Searching for files and directories by name and other parameters
• find size of files and directories and largest files and directories in specific directories or in the whole filesystem

Access Control:

• File Permissions
• Changing Read/Write/Execute Permissions
• Changing Permissions to Execute As Owner
• Changing file/directory ownership, super user concept
• Soft linking files and directories

Monitoring and Controlling Processes:

• Overview of Linux Process and Linux Thread
• Finding and Monitoring processes
• Stopping and running multiple processes
• Executing long running (server) commands

Simple utility commands:

• Standard Utility commands

Shell Scripts:

• Writing and Executing Shell Scripts
• Using, echoing and assigning to environment variables, local variables
• Arithmetic Expressions and Test Expressions
• Logic Flow: if, for, while, until, loop control
• Menu for interactive selection, case statements, parsing command line parameters
• Functions, Interrupt Handling

VI, awk, sed:

• vi editor
• Most common uses of awk
• Most common uses of sed

Perl Scripting for SysAdmins and DevOps:

Perl Scripting

• Overview and background of Perl
• Create and execute Perl Scripts.
• Perl data types, operators and control flow
• Perl pattern matching and its every day uses
• Perl Subroutines and modules
• Installing and using existing Perl Modules

System Administration Tasks using Perl

• Filtering and transforming command outputs using pattern matching
• Perl DBI - DataBase Interface
• Parsing and analyzing log files