Table of Contents

PlayGround
- Delete all lines beginning with a # from a file
  - Remove From ssh known_hosts file
- Create Users Trash Bin

PlayGround

Delete all lines beginning with a # from a file

sed '/^#/d'

sed -i '/^#/d'

Remove From ssh known_hosts file

sed -i -n '/#/!p' /root/.ssh/known_hosts

Create Users Trash Bin

cd /to/folder

mkdir -m777 -v .Trash-$UID

chown $USER .Trash-$UID