Topics

1. She-Bang & Comments
2. Print
3. Variables
4. Inputs
5. Re-directors (> , <) , Exit Status, Quotes
6. Functions
7. Conditions
8. Loops
9. SED command

Scripts we usually end with type of scripting language we are using.

1. Bourne Shell - .sh
2. Korn Shell - .ksh
3. C Shell - .csh
4. Z Shell - .zsh

Scripting we are learning here is Bash shell scripting. 5. Bourne Again shell - .bash

Bash is default in all the enterprise Linux OS (redhat, ubuntu, suse)

In Redhat , SH & BASH are same.

Thats why even for bash we are giving an extention of .sh

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Script can be executed with interpreter directly

sh 02-print.sh

NOTE: Assume the script is having she-bang and the above method of executing the script will override the she-bangs interpreter

Or we can provide executable permission and then execute it chmod ugo+x 02-print.sh chmod +x 02-print.sh

./02-print.sh