Opens a child process that allows two-way communication between your program and the child. Returns the process ID of the child process or reports a fatal error on failure. Exports one function.
| open2 |
Forks a child process to execute the specified command. Takes the following arguments:
\*rdr Represents a read filehandle that your program can use to read from the command $cmd's standard output. Can be a filehandle object or a reference to a typeglob.
\*wtr Represents a write filehandle that your program can use to write to the command $cmd's standard input. Can be a filehandle object or a reference to a typeglob.
cmd_with_args The command to be executed by the child process and its arguments. Can be specified two ways:
$cmd_with_args $cmd, "arg1", "arg2", ...
| 8.133. IPC::Msg | 8.135. IPC::Open3 |
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