ref: 89c4a6fc14b5072fcc1e9f1f41f8e5753e471b17
dir: /rc/bin/Bfn/
#!/bin/rc
rfork e
if(! ~ $#* 1){
echo usage: $0 fn >[1=2]
exit usage
}
if(~ $#srcpath 0) srcpath=.
res=`{grep -n '^'$1'\(' $srcpath/*.c /dev/null | sed -n 's/^([^:]*:[^:]*).*$/\1/gp' }
ifs='
'
for(i in $res)
echo $i
switch($#res){
case 0
echo $1: not found >[1=2]
case 1
B $res
}