I have installed redshift using apt-get.
I started it up in a terminal window, and then accidentally killed the terminal. Redshift did not stop running itself. My screen is most certainly still under the influence of redshift.
I open Linux Mint system monitor, and I could not find anything that I thought was redshift. Certainly not anything named redshift.
So how do I go about killing redshift?
ps -A | grep redshift
to see if it is still running. If yes than you also get the Process ID (the first number) than dosudo kill -9 <Process ID>
. There are certainly faster and beautiful one-liners to kill a process by name ;) but this should do it also