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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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turns on autosplit mode when used with a -n or -p. An implicit split command to the @F array is done as the first thing inside the implicit while loop produced by the -n or -p.

perl -ane 'print pop(@F), "\n";'

is equivalent to

while (<>) {
    @F = split(' ');
    print pop(@F), "\n";

An alternate delimiter may be specified using -F.

ISBN 9781906966027Perl Language Reference ManualSee the print edition