-s switch in perl

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

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Re: -s switch in perl by moritz (Cardinal) on Jul 29, 2009 at 14:53 UTC
Yes, it's also a file test operation, which returns the size of the file in byte. The documentation can be found by typing perldoc -f -X on the command line.	[reply]
Re: -s switch in perl by ikegami (Patriarch) on Jul 29, 2009 at 14:54 UTC
-X in perlfunc documents these.	[reply]
Re: -s switch in perl by philipbailey (Curate) on Jul 29, 2009 at 17:03 UTC
It is also worth mentioning that using -s in the manner shown is equivalent to: `if (-e /tmp/xyz && !-z /tmp/xyz) {}` i.e. it checks both that the file exists and has non-zero size, which can be useful.	[reply] [d/l]
Re^2: -s switch in perl by graff (Chancellor) on Jul 30, 2009 at 05:22 UTC
I think you meant to say: `if ( -e "/tmp/xyz" && ! -z _ ) {}` [download] (quotes around file name, and use of "_" to re-use the most recent stat results, rather than using stat twice in a row on the same file).	[reply] [d/l]