ref: 82c08a8a4469c4b4ba515d74addc7aac747a17d9
dir: /rc/bin/ape/grep/
#!/bin/rc rfork e opts=() files=() argv0=$0 while(! ~ $#* 0){ switch($1){ case -[cefinsv] opts=($opts $1) case -q opts=($opts -s) case -* echo $argv0 $1 not supported >[2=1] exit 'not supported' case * files=($files $1) } shift } exec /$cputype/bin/grep $opts $files