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author Patrick J Volkerding <volkerdi@slackware.com>2018-05-25 23:29:36 +0000
committer Eric Hameleers <alien@slackware.com>2018-06-01 00:36:01 +0200
commit39366733c3fe943363566756e2e152c45a1b3cb2 (patch)
tree228b0735896af90ca78151c9a69aa3efd12c8cae /slackbook/html/process-control.html
parentd31c50870d0bee042ce660e445c9294a59a3a65b (diff)
downloadcurrent-14.2.tar.gz
current-14.2.tar.xz
Fri May 25 23:29:36 UTC 201814.2
patches/packages/glibc-zoneinfo-2018e-noarch-2_slack14.2.txz: Rebuilt. Handle removal of US/Pacific-New timezone. If we see that the machine is using this, it will be automatically switched to US/Pacific.
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-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
- "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-<meta name="generator" content="HTML Tidy, see www.w3.org" />
-<title>Process Control</title>
-<meta name="GENERATOR" content="Modular DocBook HTML Stylesheet Version 1.7" />
-<link rel="HOME" title="Slackware Linux Essentials" href="index.html" />
-<link rel="PREVIOUS" title="Aliasing files with ln" href="file-commands-link.html" />
-<link rel="NEXT" title="Foregrounding" href="process-control-foregrounding.html" />
-<link rel="STYLESHEET" type="text/css" href="docbook.css" />
-<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-</head>
-<body class="CHAPTER" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#840084"
-alink="#0000FF">
-<div class="NAVHEADER">
-<table summary="Header navigation table" width="100%" border="0" cellpadding="0"
-cellspacing="0">
-<tr>
-<th colspan="3" align="center">Slackware Linux Essentials</th>
-</tr>
-
-<tr>
-<td width="10%" align="left" valign="bottom"><a href="file-commands-link.html"
-accesskey="P">Prev</a></td>
-<td width="80%" align="center" valign="bottom"></td>
-<td width="10%" align="right" valign="bottom"><a
-href="process-control-foregrounding.html" accesskey="N">Next</a></td>
-</tr>
-</table>
-
-<hr align="LEFT" width="100%" />
-</div>
-
-<div class="CHAPTER">
-<h1><a id="PROCESS-CONTROL" name="PROCESS-CONTROL"></a>Chapter 11 Process Control</h1>
-
-<div class="TOC">
-<dl>
-<dt><b>Table of Contents</b></dt>
-
-<dt>11.1 <a
-href="process-control.html#PROCESS-CONTROL-BACKGROUNDING">Backgrounding</a></dt>
-
-<dt>11.2 <a href="process-control-foregrounding.html">Foregrounding</a></dt>
-
-<dt>11.3 <a href="process-control-ps.html"><tt class="COMMAND">ps</tt></a></dt>
-
-<dt>11.4 <a href="process-control-kill.html"><tt class="COMMAND">kill</tt></a></dt>
-
-<dt>11.5 <a href="process-control-top.html"><tt class="COMMAND">top</tt></a></dt>
-</dl>
-</div>
-
-<p>Every program that is running is called a process. These processes range from things
-like the X Window System to system programs (daemons) that are started when the computer
-boots. Every process runs as a particular user. Processes that are started at boot time
-usually run as <tt class="USERNAME">root</tt> or <tt class="USERNAME">nobody</tt>.
-Processes that you start will run as you. Processes started as other users will run as
-those users.</p>
-
-<p>You have control over all the processes that you start. Additionally, <tt
-class="USERNAME">root</tt> has control over all processes on the system, including those
-started by other users. Processes can be controlled and monitored through several
-programs, as well as some shell commands.</p>
-
-<div class="SECT1">
-<h1 class="SECT1"><a id="PROCESS-CONTROL-BACKGROUNDING"
-name="PROCESS-CONTROL-BACKGROUNDING">11.1 Backgrounding</a></h1>
-
-<p>Programs started from the command line start up in the foreground. This allows you to
-see all the output of the program and interact with it. However, there are several
-occasions when you'd like the program to run without taking up your terminal. This is
-called running the program in the background, and there are a few ways to do it.</p>
-
-<p>The first way to background a process is by adding an ampersand to the command line
-when you start the program. For example, assume you wanted to use the command line mp3
-player <tt class="COMMAND">amp</tt> to play a directory full of mp3s, but you needed to
-do something else on the same terminal. The following command line would start up amp in
-the background:</p>
-
-<table border="0" bgcolor="#E0E0E0" width="100%">
-<tr>
-<td>
-<pre class="SCREEN">
-<samp class="PROMPT">%</samp> <kbd class="USERINPUT">amp *.mp3 &#38;</kbd>
-</pre>
-</td>
-</tr>
-</table>
-
-<p>The program will run as normal, and you are returned to a prompt.</p>
-
-<p>The other way to background a process is to do so while it is running. First, start up
-a program. While it is running, hit <b class="KEYCAP">Control</b>+<b
-class="KEYCAP">z</b>. This suspends the process. A suspended process is basically paused.
-It momentarily stops running, but can be started up again at any time. Once you have
-suspended a process, you are returned to a prompt. You can background the process by
-typing:</p>
-
-<table border="0" bgcolor="#E0E0E0" width="100%">
-<tr>
-<td>
-<pre class="SCREEN">
-<samp class="PROMPT">%</samp> <kbd class="USERINPUT">bg</kbd>
-</pre>
-</td>
-</tr>
-</table>
-
-<p>Now the suspended process is running in the background.</p>
-</div>
-</div>
-
-<div class="NAVFOOTER">
-<hr align="LEFT" width="100%" />
-<table summary="Footer navigation table" width="100%" border="0" cellpadding="0"
-cellspacing="0">
-<tr>
-<td width="33%" align="left" valign="top"><a href="file-commands-link.html"
-accesskey="P">Prev</a></td>
-<td width="34%" align="center" valign="top"><a href="index.html"
-accesskey="H">Home</a></td>
-<td width="33%" align="right" valign="top"><a href="process-control-foregrounding.html"
-accesskey="N">Next</a></td>
-</tr>
-
-<tr>
-<td width="33%" align="left" valign="top">Aliasing files with <tt
-class="COMMAND">ln</tt></td>
-<td width="34%" align="center" valign="top">&nbsp;</td>
-<td width="33%" align="right" valign="top">Foregrounding</td>
-</tr>
-</table>
-</div>
-</body>
-</html>
-