Shell Scripting Online Training

What is shell scripting?

Importance of shell scripting

Different types of shells

Creating shell script

Making shell scripting executable

Shell input & output

• echo, print, read

Backslash character constants

Variables

• What is variable
• System defined variables
• Environment files
• User defined variables
• Constant variables
• Local & global variables
• Special variables

Operators

• Arithmetic variables
• Relational numeric operators
• Logical operators
• Assignment operators

Conditional statements

• if, if….else
• if, elif
• case

Looping

• while, until, for
• break, continue

File test commands

String test commands

exit & sleep commands

Command line arguments

• Usage of COA
• What is $0, S#, $*, $@, $? , $$

Job scheduling

• cron
• at
• batch