Tools

find

find multiple files/folders

$find /path -type d \( -name "foldername1" -o -name "foldername2" \ )

find and remove on the fly

find /path -name "filename-to-delete" -type f -exec rm -rf {} \;

find by size over 500MB and list them into Textfile

find / -size +500M -type f > /big-files.txt

bash scripts

Header:

#!/bin/bash                        #set interpreter
date=`/bin/date +%Y%m%d-%H%M%S`    #set data-time variable for $date