How to use grep in linux to find all files contain a specific command?

Question

I'm trying to print the name of every C program in a specified directory tree that contains a "goto" command.

In other words, it must print the name of every file that contains "goto" as a word. Here is what I do:

for fullname in `grep -r -l "\<goto\>"./*.c`;
do
  echo `basename $fullname`
done

but on running this I only get

"command not found".

Answer 1

Assuming that you want to also search nested directories this should work

for fullname in $(grep -r -l "goto" . | grep ".*\.c$"); do
    echo $(basename $fullname)
done

Answer 2

I know this is answered but the following will work for non-nested-directories.

grep "regex" /path/*

which shows

t.txt:Loren ip sum let etum REGEX
v.c:do_regex_match("regex","bleh");