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Perl in a Nutshell, 2nd Edition
book

Perl in a Nutshell, 2nd Edition

by Nathan Patwardhan, Ellen Siever, Stephen Spainhour
June 2002
Beginner content levelBeginner
759 pages
80h 42m
English
O'Reilly Media, Inc.
Content preview from Perl in a Nutshell, 2nd Edition

Name

pipe

Synopsis

pipe readhandle, writehandle
                  

Opens a pair of connected pipes. This call is almost always used right before a fork, after which the pipes reader should close writehandle, and the writer should close readhandle. (Otherwise, the pipe won’t indicate end-of-file to the reader when the writer closes it.) Note that if you set up a loop of piped processes, deadlock can occur unless you are very careful. In addition, note that Perl’s pipes use standard I/O buffering, so you may need to set $| on your writehandle to flush after each output command, depending on the application. See select filehandle.

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Publisher Resources

ISBN: 0596002416Errata Page