[cpan://File::Wildcard] is designed for this kind of job. Warning: untested
use File::Wildcard;
my $wc = File::Wildcard->new(
path => './//',
match => qr{^(.*?Folder_\d+)/(\w+.jpg)$},
derive => [ '$1_$2' ],
);
while (my $match = $wc->next) {
my ($from,$to) = @$match;
print "Renaming $from to $to\n";
rename $from $to;
}
--
Oh Lord, wont you burn me a Knoppix CD ?
My friends all rate Windows, I must disagree.
Your powers of persuasion will set them all free,
So oh Lord, wont you burn me a Knoppix CD ?
(Missquoting Janis Joplin)
#!/usr/bin/perl
use strict;
use warnings;
use File::Find;
use File::Copy;
#
# Set this to 0 to turn off printing which files it's moving.
#
my $verbose = 1;
my @dirs = qw(
Folder_1
Folder_2
Folder_3
Folder_4
);
my %num;
sub wanted {
if ( -f $_ ) {
my $dir = $File::Find::dir;
$num{$dir}++;
my $src = "$dir/$_";
my $target = "${dir}_$num{$dir}.jpg";
my $mv_msg = "move '$src' to '$dir/$target'";
if ( -f $target ) {
die "Can't $mv_msg: File already exists!\n"
}
else {
move( $_, $target ) || die "Can't $mv_msg: $!\n";
print "$mv_msg OK\n" if ($verbose);
}
}
}
File::Find::find( { wanted => \&wanted }, @dirs );
I'm also presuming here that you want them left in the same directory they were in - not moved up.
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