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Perl Programming/Keywords/-x
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Perl -X -z Keywords
The -x keyword
-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).
Syntax
-x FILENAME
-x FILEHANDLE
-x EXPRESSION
-x DIRHANDLE
-x
Perl -X -z Keywords
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