system("diff -q \"$File::Find::name\" \"$other_file\" > NU
+L");
if($?) {
    print "$file is different\n";
}

[download]
could be simplified to 
if(qx/diff -q "$File::Find::name" "$other_file"/) {
    print "$file is different\n";
}

[download]
Update: Added quotes around file name variables to handle file names with spaces in them (thanks ikegami).

In reply to Re: [Win] Compare files between two directories (and subdir) by Arunbear
in thread [Win] Compare files between two directories (and subdir) by jeepj

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