I'm still new to bash scripting, and I'm trying to get a script to work. The other scripts to which this refers, start.sh and stop.sh, work fine, as well as my references to them. The only problem is ...

In our first tutorial on command line wizardry, we covered simple redirection and the basics of sed, awk, and grep. Today, we’re going to introduce the concepts of simple variable substitution and ...

Discover the techniques that help popular scripts succeed.

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This post follows up on Part 1 by examining the many ways that you can test the value of variables – e.g., whether they equal particular strings like “yes” or “no”, if they have a numeric value, if ...

There are quite a few ways to increment and decrement numeric variables in bash. This post examines the many ways you can do this. When preparing scripts that will run in bash, it’s often critical to ...

We often read (including in the book Advanced Bash-Scripting Guide by Mendel Cooper) that if we pass variable names as parameters to functions, they will be treated as string literals and cannot be ...