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Perl Programming/Keywords/pipe
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Perl package pop Keywords
The pipe keyword
The pipe function opens a pair of connected pipes like the corresponding system call. It returns true on success.
A loop of piped processes may result in deadlock. Also, pipes use I/O buffering, so depending on the application, it may be a good idea to set $| to flush the WRITEHANDLE after each command.
Syntax
pipe READHANDLE, WRITEHANDLE
See also
alarm
syscall
Perl package pop Keywords