source: appendixa/findutils-desc.xml@ 3dc7fe8f

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Last change on this file since 3dc7fe8f was da821b7, checked in by Gerard Beekmans <gerard@…>, 23 years ago

Added frcode, code and bigram to the first paragraph summarizing the
contents of the package

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@595 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

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[6370fa6]1<sect2>
2<title>Contents</title>
3
4<para>
[da821b7]5The Findutils package contains the find, locate, updatedb, xargs,
6frcode, code and bigram programs.
[6370fa6]7</para>
8
9</sect2>
10
11<sect2><title>Description</title>
12
13<sect3><title>Find</title>
14
15<para>
16The find program searches for files in a directory hierarchy which match
17a certain criteria. If no criteria is given, it lists all files in the
18current directory and it's subdirectories.
19</para>
20
21</sect3>
22
23<sect3><title>Locate</title>
24
25<para>
26Locate scans a database which contain all files and directories on a
27filesystem. This program lists the files and directories in this
[3cc70a0]28database matching a certain criteria. If a user is looking for a file this
29program will scan the database and tell him exactly where the files he
30requested are located. This only makes sense if the locate database is
31fairly up-to-date else it will provide out-of-date information.
[6370fa6]32</para>
33
34</sect3>
35
36<sect3><title>Updatedb</title>
37
38<para>
39The updatedb program updates the locate database. It scans the entire
40file system (including other file system that are currently mounted
[3cc70a0]41unless it is told not to do so) and puts every directory and file it finds
[6370fa6]42into the database that's used by the locate program which retrieves this
[3cc70a0]43information. It's a good practice to update this database once a day to
44have it up-to-date whenever it is needed.
[6370fa6]45</para>
46
47</sect3>
48
49<sect3><title>Xargs</title>
50
51<para>
[3cc70a0]52The xargs command applies a command to a list of files. If there is a need to
53perform the same command on multiple files, a file can be created that
[6370fa6]54contains all these files (one per line) and use xargs to perform that
55command on the list.
56</para>
57
58</sect3>
59
[eb9c756]60<sect3><title>frcode</title>
61
62<para>
63updatedb runs a program called frcode to compress the list of file names
64using front-compression, which reduces the database size by a factor of
654 to 5.
66</para>
67
68</sect3>
69
70<sect3><title>code</title>
71
72<para>
73code is the ancestor of frcode. It was used in older-style locate databases.
74</para>
75
76</sect3>
77
78<sect3><title>bigram</title>
79
80<para>
81bigram is used together with code to produce older-style locate databases. To
82learn more about these last three programs, read the locatedb.5 manual page.
83</para>
84
85</sect3>
86
[6370fa6]87</sect2>
88
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