Some filehandles can be rewound with the seek command (as a general rule: standard-input can not be rewound, pipes generally can not be rewound). The ord function returns the ASCII value of the first character of the scalar passed to it, you can convert that to octal (or hexadecimal) with sprintf.

In reply to RE: re-opening DATA, printing any character by lhoward
in thread re-opening DATA, printing any character by princepawn

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