# Up, the Plugin
# Author: Peter Hurford
# https://github.com/peterhurford/up.zsh

up(){                                 # Go up X directories (default 1)
  if [[ "$#" -ne 1 ]]; then
    cd ..
  elif ! [[ $1 =~ '^[0-9]+$' ]]; then
    echo "Error: up should be called with the number of directories to go up. The default is 1."
  else
    local d=""
    limit=$1
    for ((i=1 ; i <= limit ; i++))
      do
        d=$d/..
      done
    d=$(echo $d | sed 's/^\///')
    cd $d
  fi
}