Parameter expansion on a Linux system is a feature in the bash shell that allows you to manipulate the values of variables, but you need to use a specific syntax. They are often used in shell ...

Scripting in Linux–putting commands into a file so you can run them as a group—is a lot easier than running them from the command line because you don’t have to figure out the process over ...

str=abcdef echo ${#str} outputs "6". Using these forms of parameter expansion in your shell scripts can simplify and shorten your scripts. These are not the only forms of parameter expansion that bash ...

A program (binary, or executable) is a file on disk somewhere, in a recognized format. Common formats include ELF on Linux, ...

The most arcane shell commands and options are explained with plenty of examples. “Here” documents, a way to feed input to a script or command within the script itself, are explained thoroughly.

Unlike shell scripts on Unix systems, batch files are run by typing their names without their extensions. So to run a batch file named mapdrive.bat, you would type only “mapdrive”.

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. Image: jivacore/Shutterstock ...

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 ...