Mastering Linux Shell Scripting - Second Edition

Printing the script name

The $0 variable represents the script name, and this is often used in usage statements. As we are not yet looking at conditional statements, we will get the script name printed above the displayed name.

Edit your script so that it reads like the following complete code block for $HOME/bin/hello2.sh:

#!/bin/bash 
echo "You are using $0" 
echo "Hello $*" 
exit 0 

The output from the command is shown in the following screenshot:

If we prefer not to print the path and only want the name of the script to show, we can use the basename command, which extracts the name from the path. Adjust the script so that the second line ...