newxml/chapter06/procps.xml

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   2 <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
   3   <!ENTITY % general-entities SYSTEM "../general.ent">
   4   %general-entities;
   5 ]>
   6 <sect1 id="ch-system-procps" xreflabel="Procps">
   7 <title>Procps-&procps-version;</title>
   8 <?dbhtml filename="procps.html"?>
   9
  10 <indexterm zone="ch-system-procps"><primary sortas="a-Procps">Procps</primary></indexterm>
  11
  12 <para>The Procps package contains programs for monitoring processes.</para>
  13
  14 <screen>&buildtime; 0.1 SBU
  15 &diskspace; 6.2 MB</screen>
  16
  17 <para>Procps installation depends on: Bash, Binutils, Coreutils, GCC, Glibc,
  18 Make, Ncurses.</para>
  19
  20
  21
  22 <sect2>
  23 <title>Installation of Procps</title>
  24
  25 <para>Compile Procps:</para>
  26
  27 <screen><userinput>make</userinput></screen>
  28
  29 <para>Install it:</para>
  30
  31 <screen><userinput>make install</userinput></screen>
  32
  33 <para>Remove a spurious library link:</para>
  34
  35 <screen><userinput>rm /lib/libproc.so</userinput></screen>
  36
  37 </sect2>
  38
  39
  40 <sect2 id="contents-procps"><title>Contents of Procps</title>
  41
  42 <para><emphasis>Installed programs</emphasis>: free, kill, pgrep, pkill,
  43 pmap, ps, skill, snice, sysctl, tload, top, uptime, vmstat, w and watch</para>
  44
  45 <para><emphasis>Installed library</emphasis>: libproc.so</para>
  46
  47 </sect2>
  48
  49
  50 <sect2><title>Short descriptions</title>
  51
  52 <indexterm zone="ch-system-procps free"><primary sortas="b-free">free</primary></indexterm>
  53 <para id="free"><command>free</command> reports the amount of free and used memory
  54 in the system, both physical and swap memory.</para>
  55
  56 <indexterm zone="ch-system-procps kill"><primary sortas="b-kill">kill</primary></indexterm>
  57 <para id="kill"><command>kill</command> is used to send signals to processes.</para>
  58
  59 <indexterm zone="ch-system-procps pgrep"><primary sortas="b-pgrep">pgrep</primary></indexterm>
  60 <para id="pgrep"><command>pgrep</command> looks up processes based on their name
  61 and other attributes.</para>
  62
  63 <indexterm zone="ch-system-procps pkill"><primary sortas="b-pkill">pkill</primary></indexterm>
  64 <para id="pkill"><command>pkill</command> signals processes based on their name
  65 and other attributes.</para>
  66
  67 <indexterm zone="ch-system-procps pmap"><primary sortas="b-pmap">pmap</primary></indexterm>
  68 <para id="pmap"><command>pmap</command> reports the memory map of the given
  69 process.</para>
  70
  71 <indexterm zone="ch-system-procps ps"><primary sortas="b-ps">ps</primary></indexterm>
  72 <para id="ps"><command>ps</command> gives a snapshot of the current processes.</para>
  73
  74 <indexterm zone="ch-system-procps skill"><primary sortas="b-skill">skill</primary></indexterm>
  75 <para id="skill"><command>skill</command> sends signals to processes matching the
  76 given criteria.</para>
  77
  78 <indexterm zone="ch-system-procps snice"><primary sortas="b-snice">snice</primary></indexterm>
  79 <para id="snice"><command>snice</command> changes the scheduling priority of processes
  80 matching the given criteria.</para>
  81
  82 <indexterm zone="ch-system-procps sysctl"><primary sortas="b-sysctl">sysctl</primary></indexterm>
  83 <para id="sysctl"><command>sysctl</command> modifies kernel parameters at run time.</para>
  84
  85 <indexterm zone="ch-system-procps tload"><primary sortas="b-tload">tload</primary></indexterm>
  86 <para id="tload"><command>tload</command> prints a graph of the current system load
  87 average.</para>
  88
  89 <indexterm zone="ch-system-procps top"><primary sortas="b-top">top</primary></indexterm>
  90 <para id="top"><command>top</command> displays the top CPU processes. It provides
  91 an ongoing look at processor activity in real time.</para>
  92
  93 <indexterm zone="ch-system-procps uptime"><primary sortas="b-uptime">uptime</primary></indexterm>
  94 <para id="uptime"><command>uptime</command> reports how long the system has been
  95 running, how many users are logged on, and the system load averages.</para>
  96
  97 <indexterm zone="ch-system-procps vmstat"><primary sortas="b-vmstat">vmstat</primary></indexterm>
  98 <para id="vmstat"><command>vmstat</command> reports virtual memory statistics, giving
  99 information about processes, memory, paging, block IO, traps, and CPU
 100 activity.</para>
 101
 102 <indexterm zone="ch-system-procps w"><primary sortas="b-w">w</primary></indexterm>
 103 <para id="w"><command>w</command> shows which users are currently logged on,
 104 where and since when.</para>
 105
 106 <indexterm zone="ch-system-procps watch"><primary sortas="b-watch">watch</primary></indexterm>
 107 <para id="watch"><command>watch</command> runs a given command repeatedly,
 108 displaying the first screen-full of its output. This allows you to watch the
 109 output change over time.</para>
 110
 111 <indexterm zone="ch-system-procps libproc"><primary sortas="c-libproc">libproc</primary></indexterm>
 112 <para id="libproc"><command>libproc</command> contains the functions used by most
 113 programs in this package.</para>
 114
 115 </sect2>
 116
 117
 118
 119 </sect1>