Problem: In Bash you can use for loop to iterate over a number of things. This tutorial shows how to use two Bash for loops in a simple way!
Problem: Bash allows to define functions, which is very good way to reuse parts of shell scripts. This tutorial shows how to define Bash functions and apply in scripts.
Problem: Bash alias is a great way to create a simple name for complex commands. Use it to make your life in Bash command line simpler!