Being paranoid about really big files, I'd probably do: 

{
    local $/= \4096;
    binmode(INPUT);
    binmode(OUTPUT);
    while(  <INPUT>  ) {
        if(  s/^.*?(\x0d\x0a)/$1/s  ) {
            print OUTPUT $_;
            last;
        }
    }
    print OUTPUT $_   while  <INPUT>;
}

[download]
But setting $/ to be a reference to a block size is a recently added feature so be aware that your version of Perl may not support it yet. In which case you can change <INPUT> to:     read(INPUT,$_,4096)

        - tye (but my friends call me "Tye")

In reply to (tye)Re: Manipulating Binary files by tye
in thread Manipulating Binary files by Anonymous Monk

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