Jumping with symbolic links

# Thanks to @jeroenjanssens http://jeroenjanssens.com/2013/08/16/quickly-navigate-your-filesystem-from-the-command-line.html

export MARKPATH=$HOME/.marks
function jump { 
	cd -P "$MARKPATH/$1" 2>/dev/null || echo "No such mark: $1"
}
function mark { 
	mkdir -p "$MARKPATH"; ln -s "$(pwd)" "$MARKPATH/$1"
}
function unmark { 
	rm -i "$MARKPATH/$1"
}
function marks {
	ls -l "$MARKPATH" | sed 's/  / /g' | cut -d' ' -f9- | sed 's/ -/\t-/g' && echo
}

completemarks() {
  local curw=${COMP_WORDS[COMP_CWORD]}
  local wordlist=$(find $MARKPATH -type l -printf "%f\n")
  COMPREPLY=($(compgen -W '${wordlist[@]}' -- "$curw"))
  return 0
}

complete -F _completemarks jump unmark