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An introduction to the most useful special and environment variables in Bash

Are you currently learning Bash? Have you seen things like $0 and $EUID and wondered what they mean? Or what the difference is between $UID and $EUID? I'll cover ...
Network World

Using bash options to change the behavior of scripts

Here are some of the more popular bash options to control how scripts work on Linux and how to list the available options, including seeing which ones are turned on. Bash provides a large number of ...
Hackaday

Linux Fu: Better Bash Scripting

It is easy to dismiss bash — the typical Linux shell program — as just a command prompt that allows scripting. Bash, however, is a full-blown programming language. I wouldn’t presume to tell you that ...
Ars Technica

BASH: How do I name dynamic variables?

I am writing a bash script that will accept multiple arguments. My goal is to loop thru all the arguments and display them one by one. If I have a $counter ...
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I automated Linux backups with a simple bash script and cron (and it’s better than a GUI)

Build a bash script that controls what, where, and when backups run. Schedule the executable backup.sh with cron and review logs and destination after runs. Test the script, use absolute paths to ...
Linux Journal

Writing GitHub Web Hooks with Bash

Bring your GitHub repository to the next level of functionality. For the past year since Microsoft has acquired GitHub, I've been hosting my Git repositories on a private server. Although I relished ...