Personally I use `killall` command and works as expected, at least on Debian. For instance, when I want to stop conky, all I do is run `killall conky` and kill

Personally I use `killall` command and works as expected, at least on Debian. For instance, when I want to stop conky, all I do is run `killall conky` and kills all of its processes at once. Another longer way to do such thing is to run `kill -9 $(pidof conky)` which kills all returned processes.