in reply to Re: Reading Directory and getting pattern from a file
in thread Reading Directory and getting pattern from a file

Hello Dum Spiro Spero, The structure you showed is correct. I know how to get pattern string from that file. To be honest it is related to my work and I got stuck at point. Can you please show a sample code. I would really appreciate your help. Again thanks for replying to my post.
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Re^3: Reading Directory and getting pattern from a file
by GotToBTru (Prior) on Feb 10, 2015 at 17:45 UTC

    What do you have so far? Look at the examples provided with File::Find, and you can find others via Google and on this site.

    By the way, "Dum Spiro Spero" is not my name, just a tagline. It means "while I breathe, I hope" in Latin.

    Dum Spiro Spero
[reply]
      Sorry I was not aware its not your name and yes tag line is cool. So far I have this much. code, I want to go into subdirectories from there. and "mdp" is a pattern I want to match. Power artist has directories and in those there are several sub directories I just want to traverse and get the line from the file in those sub-directories. ---------------------------------------- 1 #!usr/bin/perl; 2 3 use strict; 4 use warnings; 5 6 7 $| = 1; 8 9 10 sub main{ 11 12 my $directory = '/nfs/fm/stod/stod1031/w.eakanoje.101/power_artist_2/'; 13 opendir (DIR, $directory) or die "Cannot open directory $directory"; 14 # while (my $file = readdir(DIR)){ 15 # next if($file =~ m/^\./); 16 # print "$file\n"; 17 # } 18 19 my @out = glob("mdp*"); 20 21 print "@out\n";
[reply]

        Please put <c> ...</c> tags around your code. It is unreadable.

        Dum Spiro Spero
[reply]
[d/l]

      Sorry, I was not aware of your name. Your tag line is cool. :) So far I have written this much of code. The power directory has two directories and in those directories. There are 130 sub directories for each directories. I want to go to each sub directory and get a pattern from a text file in that directory. I am stuck with how to check directories and get that perticular pattern. mdp is a pattern. Your help will be greatly appreciated. 

       
  #!usr/bin/perl;
  
  use strict;
  use warnings;
  

  $| = 1;
 

   sub main{
 
   my $directory = '/nfs/fm/stod/stod1031/w.eakanoje.101/power/';
   opendir (DIR, $directory) or die "Cannot open directory $directory"
+;
  # while (my $file = readdir(DIR)){
   # next if($file =~ m/^\./); 
  # print "$file\n";
   # }
  
   my @out = glob("mdp*");
 
   print "@out\n";
   }
   main();

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[reply]
[d/l]

        Note: Do not include line numbers in your code posts. It makes them not compile.

        Go to your Profile->{settings}->{display settings}->{code Prefix} and set it to something like "&001;: "; That will give you line numbers when viewing on perlmonks without breaking the actual code.

[reply]
        by
        get a pattern from a text file
        do you mean
        • list only file names that match a pattern
        • read a pattern from a file's contents?
        "get a pattern" sounds like the latter, but your example looks more like the former.

        I like Path::Tiny for such tasks, e.g. the following would show you all files in the tree where the name starts with "mdp". Note this doesn't use shell patterns like glob (with * and ?) but perl's own regexes. 

        use strict;
use warnings;
use Path::Tiny qw/path/;

for ( path('/nfs/fm/stod/stod1031/w.eakanoje.101/power/')->children( q
+r/^mdp/ ) ) {
    print $_ . $/;
}

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[d/l]
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