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Test if the file is NOT a directory in Perl
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Test if the file is NOT a directory in Perl
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I'm aware you can test if a file is a directory using:
if(-d $filename)
but how can you test if it's not a directory?
Have you thought of trying the following?
if (! -d $filename) ...
The result of -d is, after all, something that can be treated as a boolean value, hence the logical not operator ! will work fine.
And, if you're after something more specific than "not a directory", see here. There are quite a few things that aren't directories that it sometimes doesn't make sense to treat as regular files.
Keep in mind that's assuming you've already validated that the filename exists. If you do a ! -d on a non-existent filename, it will return true.
It's a philosophical matter as to whether you consider a non-existent thing to be "not a directory" but, if you want to ensure it exists as well, you can use ! -d in conjunction with -e, something like:
if ((-e $filename) && (! -d $filename)) ...
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