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Linux Pocket Guide
book

Linux Pocket Guide

by Daniel J. Barrett
February 2004
Beginner content levelBeginner
200 pages
5h 40m
English
O'Reilly Media, Inc.
Content preview from Linux Pocket Guide

Viewing Processes

ps

List process

uptime

View the system load

w

List active processes for all users

top

Monitor resource-intensive processes interactively

xload

Monitor system load graphically in an X window

free

Display free memory

A process is a unit of work on a Linux system. Each program you run represents one or more processes, and Linux provides commands for viewing and manipulating them. Every process is identified by a numeric process ID, or PID.

Processes are not the same as jobs (see Job Control): processes are part of the operating system, whereas jobs are known only to the shell in which they’re running. A running program comprises one or more processes; a job consists of one or more programs executed as a shell command.

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Publisher Resources

ISBN: 9780596806347Errata Page