Re^2: Can I get help with Perl glob for filtering a directory

Thanks all for the comments. I already read glob documentation,so that wasn't really helpful, and I don't recall anywhere that a wildcard was spcified there as required but perhaps.

I'm trying to think of a SAFE way to wildcard the file and only get exact matches (except for case). I'm thinking maybe glob for

myfilename*
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Then grep that list for files that match my original file length. Pretty tricky huh? I also read:

https://metacpan.org/pod/Path%3A%3ATiny
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and ^F for "case" ; upper/lower didn't seem to be discussed at all.

I'm thinking of just using something like the old reliable albiet fugly:

  my @f = grep /^\Q$fileName\E$/i,readdir D;
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This whole endeavor of asking this was to get more skilled with glob(). It seems strange to me that part of glob() functionality is to return a subset of the set of files in a dir. That's exactly what I want to do - just different than a partial filename? That's why glob() seemed like a more natural approach to this requirement.

Larry said Perl makes the difficult easy and the impossible possible. In this case, it seems it's making Perl is making the easy, difficult! Just IMHO :)

TY sirs and ladies..

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Re^3: Can I get help with Perl glob for filtering a directory by NERDVANA (Priest) on Nov 06, 2023 at 19:23 UTC
Grepping readdir seems pretty easy, aside from needing to opendir and check for errors, but the Path::Tiny ->children regex option is the easiest of all. Glob is easy if you want case-sensitive matches, which almost all Unix scripts would (the environment for which Perl was created). You also have the option of grepping glob, to save the opendir call: `my @files= grep /\/\Q$fileName\E$/i, <$dirName/*>;` [download] but note that one important difference between glob and readdir is that glob will return the path portion as you specified it in the pattern.	[reply] [d/l]

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Re^3: Can I get help with Perl glob for filtering a directory
by NERDVANA (Priest) on Nov 06, 2023 at 19:23 UTC

Grepping readdir seems pretty easy, aside from needing to opendir and check for errors, but the Path::Tiny ->children regex option is the easiest of all. Glob is easy if you want case-sensitive matches, which almost all Unix scripts would (the environment for which Perl was created). You also have the option of grepping glob, to save the opendir call:

my @files= grep /\/\Q$fileName\E$/i, <$dirName/*>;
[download]

but note that one important difference between glob and readdir is that glob will return the path portion as you specified it in the pattern.

[reply]
[d/l]