ref: 5c377d34bdc67d057d2b841c5f7141c6951e8b18
dir: /rc/bin/ape/dircp/
#!/bin/rc
# dircp src dest - copy a tree with ape's tar
switch($#*){
case 2
@{cd $1 && tar cf /fd/1 .} | @{cd $2 && tar xf /fd/0}
case *
echo usage: dircp from to >[1=2]
exit usage
}