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

Sales of this book support The Perl Foundation! Get a printed copy>>>

Unknown open() mode '%s'

(F) The second argument of 3-argument open() is not among the list of valid modes: <, >, >>, +<, +>, +>>, -|, |-, <&, >&.

ISBN 9781906966027Perl Language Reference ManualSee the print edition