It would be really nice to have command line access to this parameter.
There are nearly as many use-cases for this as there are for using notify-send
at all.
.
This would enable easily scripted messages to update status quickly. As it is,
to get messages at the speed of channel surfing, temperature changes, bandwidth
use, etc, etc, etc it's necessary to set an arbitrary, system-wide timeout of
1sec with notifyconf ("Notify-OSD Configuration" utility available from ppa)
and set --expire-time < 1000. (This makes a notification which blinks in and
out of existence.)
Case in point: I'm using notify-send for some scripts that change tv
channels and volume. It would be unnecessarily complicated to write and
compile a program to do these things, and since I am using a shell
script I can't avoid waiting for one message to disappear before the
next appears.
To be precise I want to do this:
notify-send --replaces_id=tvvolume --icon=gtk-info --urgency=critical
--expire-time=999 "Volume" "`v4l2-ctl -C volume`
I imagine this command would set the id for the first notification to
"tvvolume" and replace that with other notifications that have the same
id.... Of course an implementation on par with gnome's volume indicator
would be best, but before that I have another long list of feature
requests.
--
notify-send(1) can't replace an existing notification
https://bugs.launchpad.net/bugs/257135
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