kill all processes in ubuntu code example

Example 1: kill all python processes ubuntu

sudo pkill python
sudo pgrep python

Example 2: ubuntu kill process

pidof slack 
9734 9718 9716 9708 9622 9619
sudo kill -9 process_id

pidof apt 
9734 9718 9716 9708 9622 9619
sudo kill -9 9734 9718 9716 9708 9622 9619

Example 3: kill process ubuntu

sudo kill -9 process_id