IPC::Open3

IPC::Open3

• NAME
• SYNOPSIS
• DESCRIPTION
• See Also
• WARNING

NAME

IPC::Open3 - open a process for reading, writing, and error handling using open3()

SYNOPSIS

    $pid = open3(\*CHLD_IN, \*CHLD_OUT, \*CHLD_ERR,
'some cmd and args', 'optarg', ...);

    my($wtr, $rdr, $err);
    use Symbol 'gensym'; $err = gensym;
    $pid = open3($wtr, $rdr, $err,
'some cmd and args', 'optarg', ...);

    waitpid( $pid, 0 );
    my $child_exit_status = $? >> 8;

DESCRIPTION

Extremely similar to open2(), open3() spawns the given $cmd and connects CHLD_OUT for reading from the child, CHLD_IN for writing to the child, and CHLD_ERR for errors. If CHLD_ERR is false, or the same file descri