https://wiki.kldp.org/HOWTO//html/Adv-Bash-Scr-HOWTO/ 유용한 bash 스크립트 모음 https://devhints.io/bash Bash scripting cheatsheet Variables · Functions · Interpolation · Brace expansions · Loops · Conditional execution · Command substitution · One-page guide to Bash scripting devhints.io
