Perl Programming/Keywords/pipe

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