Script

Commands

Command	What it does
#!/bin/bash or #!/bin/sh	shebang
VAR=var	set VAR to var
$VAR	inserts var whereever $VAR is placed
case - esac	inserts case
if - fi	inserts fi

Problem:
Running your script prompts interpreter error

Fix:
Open your script with vi and execute the following

 :set fileformat=unix

Problem:
Running your script requires more rights

Fix:
Make your script runable by executing the following code

chmod +x [scriptname].sh