ref: b274842f5cc186ea254fe61f5866fbc4c494b8c7
dir: /rc/bin/xargs/
#!/bin/rc fn usage { echo usage: $0 [-n num] program [arguments] exit usage } rfork e ifs=' ' nargs=1 while(~ $1 -*) { switch($1) { case -n nargs=$2 shift 2 case * echo bla usage } } while(x = `{read -n $nargs}) $* $x if(! ~ $#x 0) $* $x