Modern operating systems are usually multitasking, meaning they create the illusion of doing more than one thing at once by rapidly switching from one executing program to another. The kernel manages this through the use of processes. Processes are how Linux organizes the different programs waiting for their turn at the CPU.

Sometimes a computer will become sluggish or an application will stop responding. In this chapter, we will look at some of the tools available at the command line that let us examine what programs are doing and how to terminate processes that are misbehaving.

This chapter will introduce the following commands: ...

Get The Linux Command Line, 2nd Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.