411 REFERENCE · Wikibooks
Perl Programming/Keywords/-k
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Perl -g -l Keywords
The -k keyword
-k is a file test that tests, if the file has its sticky bit set.
It takes one argument, either a FILENAME, a FILEHANDLE, or a DIRHANDLE to test the associated file to see, if something is true about it. If the argument is omitted, it tests $_. -k 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
-k DIRHANDLE
-k EXPRESSION
-k FILEHANDLE
-k FILENAME
-k
Perl -g -l Keywords
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