xfce4-terminal -- disable Ctrl-Z

vstuart · 2018-03-03 18:08:57

Hello. Whenever I accidentally hit Ctrl-z in a Python session in xfce4-terminal,

[victoria@victoria ~]$ python
...
>>> ## accidental Ctrl-z keypress here
[1]+ Stopped python
[victoria@victoria ~]$

... I stop/kill the process.

How can I disable the Ctrl-z kepyress in xfce4-terminal?

vstuart · 2018-03-03 18:38:25

Solution! Call this bash script via a ~/.bashrc alias:

# bash script (python-ctrl-z-disabled.sh):

#!/bin/bash
# /mnt/Vancouver/Programming/scripts/python-ctrl-z-disabled.sh

# Issue: Ctrl-Z keypress in xfce4-terminal was killing running Python instance.
# Solution: disable Ctrl+z by launching Python via this script:

trap '' INT TSTP
python

~/.bashrc alias:

alias P="/mnt/Vancouver/Programming/scripts/python-ctrl-z-disabled.sh"

Now, launching Python (P) in my terminal in host environment or my Python 2.7
and Python 3.6 virtual environments (venv) allow that Python instance to run
with Ctrl-z disabled, in that python session.

For normal usage, just launch Python in the normal way (python).

Last edited by vstuart (2018-03-03 18:39:20)

alcornoqui · 2018-03-03 18:38:55

It's not an Xfce or xfce4-terminal issue, but see if this helps:

stty susp undef
will disable the keyboard-initiated suspend signal for most programs, however commands like vim and emacs that have specific bindings for Ctrl-Z will have to be reconfigured individually.
You can add that stty command to your ~/.bash_profile or ~/.profile, logout, login again.

(from Disabling job control in bash (CTRL-Z))

Bonus: What's different between Ctrl+Z and Ctrl+C in Unix command line