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How do I test whether a file has some contents or not?

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Contributed by Hen_true on Oct 15, 2000 at 11:15 UTC
Q&A  > files


Description:

I'm trying to test whether a file has some text in it or not. How do I do that ?

Answer: How do I test whether a file has some contents or not?
contributed by ybiC

Filetest operators can be found at perlfunc:_X.   Just a day or so ago swiftone showed me the "_" shortcut for performing multiple tests on one file.   Yet another way to look at it.

if (-s $file && -T _) { # do stuff with text file > 0bytes } if (-s $file && -B _) { # do stuff with binary file > 0bytes }
Answer: How do I test whether a file has some contents or not?
contributed by merlyn

Hmm, on the off chance that "contents" is not "text", and believing the description more than the title, I'd also add:

print "it's a non-empty text-ish file" if -s $file and -T $file;

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