-l, --files-with-matchesSuppress normal output; instead print the name of each inputfile from which output would normally have been printed. Thescanning will stop on the first match. (-l is specified byPOSIX.)
-l(The letter ell.) Write only the names of files containing selectedlines to standard output. Pathnames are written once per file searched.If the standard input is searched, a pathname of (standard input) willbe written, in the POSIX locale. In other locales, standard input may bereplaced by something more appropriate in those locales.