pty.tcl Annotations

Execute an external system command on its own PTY. This is apropriate for executiong external commands that require a controling terminal, such as vi, more, less, and telnet from busybox. 'ptyexec' does not return until command has finished, but while it is executing the event loop is served. The external application can be forced to terminate prematurely.

Procedure Detail

ptyexec

proc ptyexec { args }

Execute an external program like "exec" does, but in its own PTY. Some interactive programs like 'vi', 'more', 'less', 'telnet', 'sh' assume that they are connected on a pty. If this is not the case (like when using "exec"), they malfunction. The external command takes control of Standard I/O of the session. Execution can be interrupted by the user with the break key sequence: Ctrl ^ + x/ This is enforced in session.tcl by calling ptykill (see below). It supports the syntax of 'bgexec' and also: -root : Execute without root priviledges.

Parameters:

args - Optional parameters, the program to execute, and arguments to the executable

Returns:

Nothing if not error occurs, otherwise the error (and options). @error

Defined in:

pty.tcl, line 48

ptykill

proc ptykill {  }

Kill an ongoing ptyexec execution.

Defined in:

pty.tcl, line 92

ptyresize

proc ptyresize {  }

Resize the window size of the PTY of an ongoing ptyexec session.

Defined in:

pty.tcl, line 97