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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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IO::Handle->output_field_separator EXPR

$OUTPUT_FIELD_SEPARATOR

$OFS

$,

The output field separator for the print operator. If defined, this value is printed between each of print's arguments. Default is undef. (Mnemonic: what is printed when there is a "," in your print statement.)

ISBN 9781906966027Perl Language Reference ManualSee the print edition