Check, if X is already running? (Solved)

[RSH]

Hi.

I have some scripts that are running manually executed by menu entry or called from other scripts.

When called from other scripts X is not already running then.

But the scripts usually shows Xdialog messages.

So, how can I check, if X is already running, to avoid error messages in /tmp/bootsysinit.log.

Code: Select all

Xdialog: Error initializing the GUI...
Do you run under X11 with GTK+ v1.2.0+ installed ?

Thanks,

RSH

[SFR]

Hey RSH, this should do:

Code: Select all

[ "$DISPLAY" ] && echo "X" || echo "no X"

Greetings!

[RSH]

Thanks!

[Karl Godt]

Code: Select all

test "`pidof X`" && echo "X is running" || echo "OK"

would also give a correct message if the program is executed from
an additional linux kernel terminal console,
( switched to by Control+Alt+Fx )
which would not have DISPLAY set.

[technosaurus]

You can also test for a socket at:
/tmp/.X11-unix/X*
Unix domain socket for display number *

This is how I replaced waitforx with a shell function.