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Perl Language Reference Manual
by Larry Wall and others
Paperback (6"x9"), 724 pages
ISBN 9781906966027
RRP £29.95 ($39.95)

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truncate FILEHANDLE,LENGTH

truncate EXPR,LENGTH

Truncates the file opened on FILEHANDLE, or named by EXPR, to the specified length. Raises an exception if truncate isn't implemented on your system. Returns true if successful, the undefined value otherwise.

The behavior is undefined if LENGTH is greater than the length of the file.

The position in the file of FILEHANDLE is left unchanged. You may want to call before writing to the file.

ISBN 9781906966027Perl Language Reference ManualSee the print edition