I am new Perl and programming and saw a snippet on here I thought I would try to fix to work for me, but its not working. What am I doing wrong? Any help would be greatly appreciated. For testing I wanted to change all files named "append" to "aPPend" 
die("Cannot open /cdw/home_dir/s006258/MarketingDB/.")
    unless(opendir(DIR, "/cdw/home_dir/s006258/MarketingDB/"));
    
#Print to new file 
die("Cannot open Log file to read from.")
    unless(open(FILES, ">List_of_files_changed.txt"));

    print "Reading from file\n";    
    #reading from file 
for my $file (readdir(DIR)) {
        if($file =~ /^append/) {
        print "$file\n";
        $old=$_;
        s/^append/aPPend/;
        die "$_ already exists" if (-e $_);
        print "$old is old and $_ is new\n";
        rename($old, $_) or die "Failed to rename\n";
    }
}

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The output for the last print statemen gives me " is old and new is new" and says "Failed to rename". Thanks again...

In reply to trying to rename files by Anonymous Monk

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