ITGG bash scripting 1

[student@localhost bash-scripting]$ cat script2b
#!/bin/bash

. colors

echo the color is $COLOR
[student@localhost bash-scripting]$ cat colors
COLOR=pink
[student@localhost bash-scripting]$

[student@localhost bash-scripting]$ cat script9b
#!/bin/bash

[ -z $1 ] && echo you have to provide an argument && exit 11

echo the argument is $1

[ -f $1 ] && echo it\'s a file || echo $1 is not a file

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