up.sh

# https://stackoverflow.com/questions/188162/what-is-the-most-useful-script-youve-written-for-everyday-life
# /a/very/deeply/nested/path/somewhere> up 4
# /a/very>

#!/bin/bash
LIMIT=$1
P=$PWD
for ((i=1; i <= LIMIT; i++))
do
    P=$P/..
done
cd $P