Shell Scripting
Unlock the Power of Bash Getopts: The Unsung Hero
getopts is a shell builtin which is available in both the regular Bourne shell (sh) and in Bash. It is short abbreviation for "get the options" which you have …
.bashrc vs .bash_profile [Which one to use?]
All rc files are for all shell invocations while the profiles are strictly for interactive shells. when you login via SSH, or via duplicate console, or via …
Bash check File Exists with Best Practices [5 Methods]
In this tutorial I have consolidated a list of file test operators which can be used to check different types of files. Bash Check file exists, is a symbolic …
Bash if else usage guide for absolute beginners
Beginners tutorial to learn bash if else statement in Linux and Unix. Nested if statement, Bash if multiple condition, if elif else statement with shell script …
Bash Function Usage Guide for Absolute Beginners
How to define bash function, pass command line arguments to a function and store it as variable or array, Use return value to return different exit codes from …