Posts

Bash user interfaces Using select to make simple menus #!/bin/bash OPTIONS="Hello Quit" select opt in $OPTIONS; do if [ "$opt" = "Quit" ]; then echo done exit elif [...
Bash functions As in almost any programming language, you can use functions to group pieces of code in a more logical way or practice the divine art of recursion. Declaring a function is...
Bash loops for, while and until The for loop is a little bit different from other programming languages. Basically, it let’s you iterate over a series of ‘words’ within a string. The while executes a piece...
Bash redirection Theory and quick reference There are 3 file descriptors, stdin, stdout and stderr (std=standard). Basically you can: redirect stdout to a file redirect stderr to a file...