Imagine that you want to output multiple lines of text in Bash, or any shell script. Maybe it’s for a help string for a particularly convoluted shell script you’re writing. You could have a separate ...

Sandra Henry-Stocker was a programmer, Linux systems administrator, security engineer and Linux journalist for most of her 30-year career. She describes herself as "USL" (Unix as a second language) ...

Each Linux command returns an exit code, with 0 indicating success and non-zero values indicating failure. You can use the $? variable to access the exit code and control program flow in scripts. Be ...

Simply put, a Shell Script is a program that is run by a UNIX/Linux shell. It is a file that contains a series of commands which are executed sequentially as if they were entered on the command line ...

Jack Wallen shows how you can create a Linux shell script that requires a password without having to save a password within the script. Image: dennizn/Adobe Stock ...