Shell function to easily go up through the directory tree without all those dots (cd ../../../../ ---> up 4)

up

#!/bin/bash

function up() {
	if [ $# -ne 1 ]
	then
		echo "You must provide one argument. e.g. 'up 4'"
	fi

	START=1
	END=$1
	for (( i=$START; i<=$END; i++ ))
	do
		cd ../
	done
}