shithub: x

ref: 989dbedde74719cbb6c2d85316325b7db7621118
dir: x/path

View raw version 
#!/bin/rc
rfork e
. /sys/lib/x/lib.rc
usage = '
	x/path [-Pprl]
'

if(! ~ $$#* -*)
	wd=$$#*
if not
	wd=`{pwd}
wd=`{cleanname $wd}
if(! ~ $wd /x/*)
	exit 'invalid path'
for(arg){
	switch($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
}