how to delete everything in a directory linux code example

Example 1: how to remove folder and its contents in linux

rm -rf dirname

Example 2: remove all files inside directory linux

# remove everything in a directory 
rm /path/to/dir/*
# remove all sub-directories and files
rm -r /path/to/dir/*

Example 3: linux remove folder and all his content

rm -rf /path/to/directory/*