I know that I can change the niceness using this command:

renice [-n] priority [[-p] pid ...] [[-g] pgrp ...] [[-u] user ...]

But it would be much more convenient if I could do it while scanning the processes in top.

2 Answers 2


Press r. That's it! :-)

Reference: The 9th item in 12 TOP Command Examples in Linux


htop gives you a user interface, that is easier to use. F7 and F8 are used to renice the high-lighted process. You need sudo permissions to decrease the nice value.

sudo add-apt-repository universe  # only for standard Ubuntu
sudo apt update
sudo apt install htop


Or if you want to decrease the nice value (can be dangerous)

sudo -H htop
  • 2
    I knew about htop. Thanks for your answer though. Jan 7, 2017 at 20:30
  • 1
    I didn't know about htop! Thanks @sudodus! :-) Jan 7, 2017 at 21:16
  • 1
    You are welcome, both of you :-)
    – sudodus
    Jan 7, 2017 at 21:21

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