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 ...

Looping in bash is easy. You just use a for or a while statement. But, when you want to process a complete line of text from a file in each pass through the loop, you might have to work a little ...

Bash scripting is every Linux administrator’s Swiss Army knife. Learn how using a for-loop in conjunction with Bash scripts can produce powerful results. Bash scripting remains a staple of my ...

If you want to exit a loop before all the commands in the loop have been run and all of the loop values have been processed, this command is just what you need; it provides a way to exit a loop ...