#!/bin/bash clear echo "Hello world!" The first line tells the operating system what shell to use to interpret the script and the location of the shell. Double quotes do not prevent Bash from ...

I love Express Script, they are great! I get my meds cheap and the pharmacist are all helpful. I cannot say that for all customer service people but they do a great job as well. Just like every ...

At a basic level, parameter expansion means changing Bash syntax into a value—expanding it. For example: You can change the ...