Search string per file once and print the file name

Question

How may I use grep (or any other tool) to search one string per file only once and also print that file name?

Answer 1

grep -rFl "string" /path/

• -r: search recursively (not standard but pretty common)
• -F: fixed string search (as opposed to regexp pattern matching)
• -l: List name of the file containing "string"

You can also use:

find /path -type f -exec  grep -lF "string" {} +

If your grep doesn't support -r.