ref: 2728e065895e7af2493ed7af3b8897caa416adf6
dir: /rc/bin/Bfn/
#!/bin/rc if(! ~ $#* 1){ echo usage: $0 fn >[2=1] exit usage } res=`{grep -n '^'$1'\(' *.c | sed -n 's/^([^:]*:[^:]*).*$/\1/gp' } ifs=' ' for(i in $res) echo $i switch($#res){ case 0 echo $1: not found >[2=1] case 1 plumb $res }