A shell function is like a function in other programming languages, where you can group related statements together. You can avoid code duplication by using functions to increase modularity and ...

Unix shell script kit is a collection of utility functions and constants. The kit works with POSIX shells, including bash, zsh, dash, ksh, sh, etc. All suggestions are welcome and appreciated ...

In Bash shell scripting, functions are ways to group the set of instructions together to get a specific outcome. You can think of functions as a mini script. Functions are also called procedures and ...

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.

Unix and Linux shells are very powerful and extremely customizable. These humble text-based interfaces have a surprising amount of power. For one thing, they’re fully-fledged programming languages.