DragonFly On-Line Manual Pages
pty(1) DragonFly General Commands Manual pty(1)
NAME
pty - redirects terminal I/O to pseudo-terminal
SYNOPSIS
pty
DESCRIPTION
Pty is a tool to help debug console programs which take the terminal out
of canonical mode, by allowing the program being debugged and the
debugger to run on separate terminal devices. This allows one to step
through program code in the debugger without messing up the terminal
settings of the program being debugged or having debugger output
overwrite program output.
To use pty, the programmer changes to the terminal device where he or she
wishes to interact with the program to be debugged, and at the shell
prompt, runs pty with no arguments. Pty will print out the filename of
the slave side of the pseudo-terminal it has opened. Inside the
debugger, running in another terminal device, one then redirects the
program to be debugged's IO to the slave (tty command of gdb).
Thereafter, when running the program under the debugger, its I/O will
occur on the device on which pty is running.
When you are finished using pty, you must manually kill it. When pty
starts it also prints out its pid.
AUTHORS
James Bailie <jimmy@mammothcheese.ca>
http://www.mammothcheese.ca
October 6, 2007