Re: What's the best way to avoid name collisions when creating files?

I just use random strings, with this sub I found by searching PerlMonks:

sub rndlc{local$"=''; "@{[map{chr(97+int rand 26)} 1 .. shift]}" };
my $filename = rndlc(10);
[download]

You can always attach the random string at the end of a date-time string to get more human-friendly filenames.

Of course there's no guarantee you won't get the same string twice, but the odds are 26¹⁰ against it...

($_='kkvvttuu bbooppuuiiffss qqffssmm iibbddllffss')
=~y~b-v~a-z~s; print

Comment on Re: What's the best way to avoid name collisions when creating files? Download Code

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Re^2: What's the best way to avoid name collisions when creating files? by DrHyde (Prior) on May 03, 2005 at 09:03 UTC
You are assuming that the random number generator's results are evenly distributed. You might like to check the quality of `rand`'s results using Statistics::ChiSquare.	[reply] [d/l]