< Perl Programming | Keywords
The -x keywordEdit
-x is a file test that returns true, if the file is executable by effective uid/gid.
It takes one argument, either a FILENAME, a FILEHANDLE, or a DIRHANDLE to test the associated file to see if the file is executable by effective uid/gid. If the argument is omitted, it tests $_. -x returns 1 for true and an empty string for false. If the file doesn't exist or can't be examined, it returns undef and sets $! (errno).
-x FILENAME -x FILEHANDLE -x EXPRESSION -x DIRHANDLE -x