Use of dkpg in Kunbuntu - can't remove app

[patvr]

Operating System: Kubuntu 24.04
KDE Plasma Version: 5.27.12
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.13
Kernel Version: 6.17.0-14-generic (64-bit)
Graphics Platform: X11
Processors: 4 × AMD A8-5600K APU with Radeon(tm) HD Graphics
Memory: 7.0 GiB of RAM
Graphics Processor: AMD ARUBA
Manufacturer: Gigabyte Technology Co., Ltd.

- I recently install the Terminus (terminus-app) Modern SSH client from a .deb file downloaded at https://termius.com/ using

sudo dpkg -i Terminus.deb

- Not really liking it I then wanted to remove it from my system and get the following:

patvr@sizz-linux00:~/Desktop$ sudo dpkg -r terminus-app
dpkg: warning: ignoring request to remove terminus-app which isn't installed

- So checking a bit further with

patvr@sizz-linux00:~/Desktop$ sudo dpkg -l

- I get the following output which clearly shows that something is there

<snip>
ii tcpdump 4.99.4-3ubuntu4.24.04.1 amd64 command-line network traffic analyzer
ii telnet 0.17+2.5-3ubuntu4.1 all transitional dummy package for inetutils-telnet default swit>
ii termius-app 9.37.4 amd64
ii thermald 2.5.6-2ubuntu0.24.04.3 amd64 Thermal monitoring and controlling daemon
</endsnip>

- When it is running I see this about the processes

patvr 9285 1533 0 12:26 ? 00:00:02 /opt/Termius/termius-app --enable-crashpad
patvr 9289 9285 0 12:26 ? 00:00:00 /opt/Termius/termius-app --type=zygote --no-zygote-sandbox --enable-crashpad --enable-crashpad
patvr 9290 9285 0 12:26 ? 00:00:00 /opt/Termius/termius-app --type=zygote --enable-crashpad --enable-crashpad
patvr 9292 9290 0 12:26 ? 00:00:00 /opt/Termius/termius-app --type=zygote --enable-crashpad --enable-crashpad
patvr 9387 9289 0 12:26 ? 00:00:03 /opt/Termius/termius-app --type=gpu-process --enable-crashpad --enable-crash-reporter=7119622e-f616-4df8-943e-84b0416
patvr 9391 9285 0 12:26 ? 00:00:00 /opt/Termius/termius-app --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-GB --service-sandbo
patvr 9398 9285 0 12:26 ? 00:00:03 /opt/Termius/termius-app --type=renderer --enable-crashpad --enable-crash-reporter=7119622e-f616-4df8-943e-84b0416506
patvr 9405 9285 1 12:26 ? 00:00:03 /opt/Termius/termius-app --type=renderer --enable-crashpad --enable-crash-reporter=7119622e-f616-4df8-943e-84b0416506
patvr 9416 9285 3 12:26 ? 00:00:11 /opt/Termius/termius-app --type=renderer --enable-crashpad --enable-crash-reporter=7119622e-f616-4df8-943e-84b0416506

What am I doing wrong?

[Snowhog]

I don't think you are spelling the name correctly. The app isn't terminus. It is termius.

[die.boer]

what Snowhog said,you spelled it wrong
run these in terminal (copy/paste it)

pkill termius-app

sudo dpkg -P termius-app