in reply to Require input reading files recursively in perl

General disclaimer: use strict/warnings.

Using a global filehandle (or in general any global variable that can be modified) with recursion is a *bad* idea. Instead use lexcials: 
opendir(my $SCR , $dir) or die "Can't open $dir: $!";
while( defined (my $file = readdir $SCR) )

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Don't forget to closedir when done.

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Re^2: Require input reading files recursively in perl
by jesuashok (Curate) on Apr 17, 2013 at 13:28 UTC
    Thanks a lot. Below is the newer version and it works fine. Appreciate the time and your valuable input. 
    #!/usr/bin/perl

use strict;
use warnings;

my $parent_dir = "/panther/home/efxprod/support";

process_dir($parent_dir);

sub process_dir {
        my $dir = shift;
        print "Processing $dir\n";
        opendir(my $SCR , $dir) or die "Can't open $dir: $!";
        while( defined (my $file = readdir $SCR) )
        {
           next if ($file =~ /\.$/ );
           next if ($file =~ /\.txt$/ );
           if ( $file =~ /\.sh$/ ) {
             print "not a regullar file: $file\n";
           } elsif ( $file =~ /\.pl$/) {
             print "perl $file\n";
           } elsif ( -d "$dir/$file" ) {
             print "directory : $dir/$file\n";
             process_dir("$dir/$file/");
             #next;
           #} elsif ( $file
           } else {
                print "Else :$file\n" if ( -B "$dir/$file");
           }
           print "file -> $file\n";
        }
    closedir($SCR);
}

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