open2

open2 (\*

rdr

, \*

wtr

, 

cmd_with_args

)

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_arguments

The command to be executed by the child process, and its arguments. Can be specified two ways:

$cmd_with_args
 
$cmd
, "
arg1
", "
arg2
", ...