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Re: sequencial file naming

by mrmick (Curate)
on Jun 08, 2001 at 20:36 UTC ( #86969=note: print w/replies, xml ) Need Help??

in reply to sequencial file naming

One way is to get a list of the matching files in the directory, sorting them and adding to the digit. This example outputs last digit and the new filename to STDOUT to demonstrate:

(remember to use strict when programming)

$dir='path to directory'; opendir D, $dir or die "Cannot open directory $dir: $!\n"; while( defined (my $file = readdir(D)) ) { if ($file =~ /\.dat$/){ push(@files,$file); } } closedir D; @files = sort @files; @filename = split(/\./,$files[$#files]); print $filename[0],"\n"; $filename = ($filename[0] + 1) . '.dat'; print $filename,"\n";


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[Lady_Aleena]: And you see how the first two are vastly different than the third, right?
[james28909]: it would be to much work just to get around renaming three subs lol
[james28909]: but you could put it all in one sub and return the same data type that was inputted. i could write a small example maybe
[Lady_Aleena]: Their uses are also vastly different.
[Lady_Aleena]: The first two make hashes and arrays from a file, the third returns data from a pre-existing hash.

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