shithub: x

ref: 15a47f5bcfdb3a1059c3dcea51786ce1ac40abf4
dir: x/path

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#!/bin/rc
# x/path -- extract datums from the path
rfork e
if(! ~ $$#* -*)
	wd=$$#*
if not
	wd=`{pwd}
for(arg){
	switch($arg){
	case -P
		echo $wd | sed 's,/[^/]+/[^/]+(.*),\1,'
	case -p
		echo $wd | sed 's,/[^/]+/[^/]+/(.*),\1,'
	case -r
		echo $wd | sed 's,(/[^/]+/[^/]+).*,\1,'
	case -l
		echo $wd | awk -F/ '{if($3) print $3; else print $0}'
	}
	shift
}