#!/bin/sh -f

echo "$@" |
	awk -F'/+' '{
		delete a
		n = 0
		for(i = 1; i <= NF; i++) {
			if($i == ".." && n > 0 && a[n] != "..")
				n--
			else if($i != "" && $i != ".")
				a[++n] = $i
		}
		s = ""
		for(i = 1; i <= n; i++)
			s = s "/" a[i]
		print substr(s, 2)
	}'