Bash_Scripting

Learning bash scripting for automation based on this tutorial.

First Part

Making an executable and compiling through:

chmod +x <filename>.sh
./<filename>.sh

Checking default interpreter with:

echo $SHELL

Define shell interpreter explicitly with:

#!/bin/bash

Alternative to execute a bash script is with:

$ bash <filename>.sh

In this way the content of the file is directly loaded and interpreted as a script.

Some Notes on Shell commands:

• Navigating to the previous location you were with cd -
• Any command output can be recorded in a file through >, for example echo "Hello World" > text.txt will create text.txt file with "Hello World"
• Assigning variables happens as usual but you cannot use spaces a = 8 is not valid but a=8 is
• Calling variables is done with "$" -> echo $a will display a's value