On Sat, 29 Nov 2025, Jim Klimov wrote:
> Well, as a sort of hot-fix, you could edit
> `/usr/lib/systemd/system/nut-monitor.service` to replace ExecStart
> from a direct command call to a shell snippet, something like:
>
> -ExecStart=/usr/local/ups/sbin/upsmon -F
> +ExecStart=/bin/sh -c '/usr/local/ups/sbin/upsmon -F | grep -v "Network UPS
> Tools upsmon 2.8.1"'
>
> NOTE: If here you would be editing the file directly, it would be likely
> overwritten by eventual package upgrade -
> but then it would hopefully be with a more recent NUT.
This is a neat idea. I made the change to ExecStart and ran
systemctl daemon-reload. I then ran systemctl status nut-monitor and got the
following error message:
Nov 30 12:54:27 titan systemd[1]:
/usr/lib/systemd/system/nut-monitor.service:38:
Ignoring unknown escape sequences: "/usr/sbin/upsmon -F | grep -vE "Network
UPS Tools .* 2\.8\.[012]""
It looks as if systemd is making a mess of the single and double quotes.
I've been reading
https://www.freedesktop.org/software/systemd/man/latest/systemd.service.html#Command%20lines
but I'm not any clearer about single/double quoting.
Roger
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