I recently thought about writing a Groovy script to search JARs for a specific string, but decided to first look for an alternative rather than writing a script. The alternative needed to be easy to ...

Want to know the tricks of replacing a variable in a file using the SED command? This article will give you an overview of replacing a variable value in a file using SED. Before replacing a variable ...

Have you ever found yourself in a situation where you had to ensure that only one copy of a program could be running at any given time? If so, you probably thought it would be nice if the program ...

This article is reprinted from the book A Practical Guide to Linux Commands, Editors, and Shell Programming 3rd edition, with permission of the author and publisher ...