ref: d97775a8f5f5cefdfbaea09c3ab56d2263138768
dir: /path/
#!/bin/rc
# x/path -- extract datums from the path
rfork e
if(! ~ $$#* -*)
wd=$$#*
if not
wd=`{pwd}
if(! ~ $wd /x/*)
exit notinx
for(arg){
switch($arg){
case -P
echo $wd | sed 's,/x/[^/]+(.*),\1,'
case -p
echo $wd | sed 's,/x/[^/]+/(.*),\1,'
case -r
echo $wd | sed 's,(/x/[^/]+).*,\1,'
case -l
echo $wd | awk -F/ '{print $3}'
}
shift
}