The looping options provided by bash include for loops, while loops and until loops. They can help you get a lot done without too much effort. The bash shell provides numerous ways to loop through ...

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 ...

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 ...

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 ...

Ever wondered why programming in Bash is so difficult? Bash employs the same constructs as traditional programming languages; however, under the hood, the logic is rather different. The Bourne-Again ...

Hey,<BR><BR>I've got a script that runs a program in a loop. The program writes a file, and the script extracts a value out of that file. If the value doesn't meet the criteria, the loop ...

Few aspects of Unix system administration are more intimate than the relationship between the admin and their chosen shell. After all, the shell is the most fundamental interface to the system, the ...

This article will introduce the concept of playing a file line by line in Linux with the help of examples and best user tips. We'll walk you through some of the most common errors made when reading a ...