Find and replace all instances of a phrase with another one
sudo find /folder/path -type f -exec sed -i -e 's/originalword/newword/g' {} \;
Delete Folder with many files
cd /path/to/folder && perl -e 'for(<*>){((stat)[9]<(unlink))}'
Largest folders listed out
du -a /path/to/folder | sort -n -r | head -n 10
scp file_to_transfer.txt root@remotehost.com:/directory_to_drop_file/location/
scp -i ~/path/to/key.pem file_to_transfer.txt root@remotehost.com:/directory_to_drop_file/location/
curl -I -Ls -o /dev/null -w %{url_effective} https://www.google.com
