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<?xml version="1.0"?>
<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY legal SYSTEM "legal.xml">
<!ENTITY appversion "1.10">
<!ENTITY manrevision "1.10">
<!ENTITY date "July 2015">
<!ENTITY app "Disk Usage Analyzer">
]>
<!--
(Do not remove this comment block.)
Maintained by the MATE Documentation Project
http://wiki.mate-desktop.org/dev-doc:doc-team-guide
Template version: 2.0 beta
Template last modified Apr 11, 2002
-->
<!-- =============Document Header ============================= -->
<article id="index" lang="en">
<!-- please do not change the id; for translations, change lang to -->
<!-- appropriate code -->
<articleinfo>
<title>&app; Manual</title>
<abstract role="description">
<para>&app; is a graphical, menu-driven viewer that you can
use to view and monitor your disk usage and folder structure.</para>
</abstract>
<copyright lang="en">
<year>2015-2021</year>
<holder>MATE Documentation Project</holder>
</copyright>
<copyright>
<year>2006</year>
<holder>Fabio Marzocca</holder>
</copyright>
<!-- translators: uncomment this:
<copyright>
<year>2002</year>
<holder>ME-THE-TRANSLATOR (Latin translation)</holder>
</copyright>
-->
<publisher>
<publishername>MATE Documentation Project</publishername>
</publisher>
<publisher>
<publishername>GNOME Documentation Project</publishername>
</publisher>
&legal;
<authorgroup>
<author role="maintainer" lang="en">
<surname>MATE-Dokumentationsteam</surname>
<affiliation>
<orgname>MATE Desktop</orgname>
</affiliation>
</author>
<author>
<firstname>Fabio</firstname>
<surname>Marzocca</surname>
<affiliation>
<orgname>GNOME Documentation Project</orgname>
<address> <email>thesaltydog@gmail.com</email> </address>
</affiliation>
</author>
<author role="maintainer">
<firstname>Fabio</firstname>
<surname>Marzocca</surname>
<affiliation>
<address><email>thesaltydog@gmail.com</email></address>
</affiliation>
</author>
<!-- This is appropriate place for other contributors: translators,
maintainers, etc. Commented out by default.
<othercredit role="translator">
<firstname>Latin</firstname>
<surname>Translator 1</surname>
<affiliation>
<orgname>Latin Translation Team</orgname>
<address> <email>translator@gnome.org</email> </address>
</affiliation>
<contrib>Latin translation</contrib>
</othercredit>
-->
</authorgroup>
<releaseinfo revision="1.10" role="review">
</releaseinfo>
<revhistory>
<revision>
<revnumber>&app; Manual 1.10</revnumber>
<date>July 2015</date>
<revdescription>
<para role="author" lang="en">Wolfgang Ulbrich
</para>
<para role="publisher">MATE Documentation Project</para>
</revdescription>
</revision>
<revision>
<revnumber>&app; Manual 1.0</revnumber>
<date>April 2006</date>
<revdescription>
<para role="author">Emmanuele Bassi
<email>ebassi@gmail.com</email>
</para>
<para role="publisher">GNOME Documentation Project</para>
</revdescription>
</revision>
</revhistory>
<releaseinfo>This manual describes version &appversion; of &app;.</releaseinfo>
<legalnotice>
<title>Feedback</title>
<para>To report a bug or make a suggestion regarding the &app; application or
this manual, follow the directions in the
<ulink url="help:mate-user-guide/feedback" type="help">MATE Feedback Page</ulink>.
</para>
<!-- Translators may also add here feedback address for translations -->
</legalnotice>
</articleinfo>
<indexterm>
<primary>Disk Usage Analyzer</primary>
</indexterm>
<!-- ============= Document Body ============================= -->
<!-- ============= Introduction ============================== -->
<sect1 id="baobab-introduction">
<title>Introduction</title>
<para><application>&app;</application> is a graphical, menu-driven
application to analyze disk usage in any MATE environment. <application>&app;</application> can easily scan
either the whole filesystem tree, or a specific user-requested directory
branch (local or remote). </para>
<para>It also auto-detects in real-time any changes
made to your home directory as far as any mounted/unmounted device.
<application>&app;</application> also provides a full graphical treemap
window for each selected folder.</para>
</sect1>
<!-- ================ Getting Started ================================ -->
<sect1 id="baobab-getting-started">
<title>Getting Started</title>
<para><application>&app;</application> can be started in three ways:</para>
<itemizedlist>
<listitem><para>from MATE menu <menuchoice><guimenu>Applications</guimenu><guimenuitem>Accessories</guimenuitem></menuchoice>;</para>
</listitem>
<listitem><para>from a terminal window;</para>
</listitem>
<listitem><para>from Caja "Open with..." ;</para>
</listitem>
</itemizedlist>
<para>If you want to start <application>&app;</application> from a terminal window, just type:</para>
<para><command>mate-disk-usage-analyzer <full_path_to_a_directory></command>, then press <keycap>Return</keycap>.</para>
<para></para>
<para>If launched from MATE menu, <application>&app;</application> starts and remains in a stand-by state, waiting for user action.</para>
<para>When you start <application>&app;</application> from the MATE Menu, the following window is displayed.</para>
<!-- ==== Figure ==== -->
<figure id="baobab-fig">
<title>&app; Window</title>
<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="figures/baobab_window.png" format="PNG"/>
</imageobject>
<textobject>
<phrase>Shows &app; main window. Contains menubar, display area, scrollbars, and statusbar. </phrase>
</textobject>
</mediaobject>
</screenshot>
</figure>
<!-- ==== End of Figure ==== -->
<para>The user can then:</para>
<itemizedlist>
<listitem><para>start a full filesystem scan;</para>
</listitem>
<listitem><para>select a specific local directory branch to scan</para>
</listitem>
<listitem><para>select a remote server and folder to scan</para>
</listitem>
<listitem><para>set preferences</para>
</listitem>
</itemizedlist>
</sect1>
<!-- ================ Usage ================================ -->
<sect1 id="baobab-usage">
<title>Usage</title>
<sect2 id="baobab-fullscan">
<title>Full filesystem scan</title>
<para>To start a full filesystem scan select <menuchoice><guimenu>Analyzer</guimenu><guimenuitem>Scan Filesystem</guimenuitem></menuchoice>
from the menu, or press on the <guibutton>Scan Filesystem</guibutton> toolbar button.</para>
<para>When the scanning process ends up, you will get the full tree of your filesystem,
like the one in the next Figure.</para>
<!-- ==== Figure ==== -->
<figure id="baobab-fullscan-fig">
<title>&app; Full filesystem scan</title>
<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="figures/baobab_fullscan.png" format="PNG"/>
</imageobject>
<textobject>
<phrase>Shows &app; full filesystem scan window. Contains menubar, display area, scrollbars, and statusbar. </phrase>
</textobject>
</mediaobject>
</screenshot>
</figure>
<!-- ==== End of Figure ==== -->
<note><para>When you run a full filesystem scan,
<application>&app;</application> window will start drawing the tree as soon
as the thread starts scanning the filesystem. If any large partition is mounted
on the filesystem, that will be scanned too.</para></note>
<para><application>&app;</application> will display sizes in the
directory tree as allocated space. This means that the displayed sizes refer
to the actual disk usage and not to the apparent directory size.
If you want to view the apparent file size, uncheck <menuchoice><guimenu>View</guimenu><guimenuitem>Allocated Space</guimenuitem></menuchoice> .</para>
<warning><para><application>&app;</application> will not count the /proc dir, nor
any file size that is not related to a "plain" file, so symlinks, character blocks,
device blocks will not be part of the directory size.</para></warning>
<para>Hard-links are managed in a different way: this first hardlink is
counted as a normal file, while the subsequent links to the same inode device
are not counted in the total, but highlighted in the right-hand column of the
window.</para>
</sect2>
<sect2 id="baobab-folderscan">
<title>Single folder scan</title>
<para>To start a single folder scan select
<menuchoice><guimenu>Analyzer</guimenu><guimenuitem>Scan Folder...</guimenuitem></menuchoice>
from the menu, or press on the <guibutton>Scan Folder</guibutton> toolbar button.</para>
</sect2>
<sect2 id="baobab-remotescan">
<title>Remote scan</title>
<para>If you need to scan a remote server-folder, just click on the toolbar
icon <guibutton>Scan Remote Folder</guibutton> or select <menuchoice><guimenu>Analyzer</guimenu><guimenuitem>Scan Remote Folder</guimenuitem></menuchoice>
from the menu and you will get the following dialog box. <application>&app;</application>
can connect to a server through ssh, ftp, smb, http and https.</para>
<!-- ==== Figure ==== -->
<figure id="baobab-remote-fig">
<title>&app; Remote folder scan</title>
<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="figures/baobab_remote.png" format="PNG"/>
</imageobject>
<textobject>
<phrase>Shows &app; remote folder dialog window. </phrase>
</textobject>
</mediaobject>
</screenshot>
</figure>
<!-- ==== End of Figure ==== -->
</sect2>
</sect1>
<!-- ============= Preferences =============================== -->
<sect1 id="baobab-preferences">
<title>Preferences</title>
<para>To change the <application>&app;</application> application
preferences, choose <menuchoice><guimenu>Edit</guimenu><guimenuitem>Preferences</guimenuitem></menuchoice>.</para>
<!-- ==== Figure ==== -->
<figure id="baobab-preferences-fig">
<title>&app; Preferences Window</title>
<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="figures/baobab_prefs.png" format="PNG"/>
</imageobject>
<textobject>
<phrase>Preferences window </phrase>
</textobject>
</mediaobject>
</screenshot>
</figure>
<!-- ==== End of Figure ==== -->
<sect2 id="baobab-scan-preferences">
<title>Select devices to be scanned</title>
<para>In the first part of the Preferences window, all detected mounted devices
are listed. Click on the checkbox to include/exclude the partition into the
filesystem scanning operations. </para>
<note><para>The device mounted on "/" cannot be excluded from the scan.</para></note>
</sect2>
<sect2 id="baobab-monitor-preferences">
<title>Enable monitoring of home</title>
<para>If this option is checked, <application>&app;</application> will
constantly monitor any external changes to home directory and warn
the user if a file is added/removed.</para>
</sect2>
</sect1>
<!-- ================ Treemaps ================================ -->
<sect1 id="baobab-treemaps">
<title>Treemaps</title>
<para><guilabel>Treemap</guilabel> concepts have been developed by Ben Shneiderman in the '90s.
Read his <ulink type="http" url="http://www.cs.umd.edu/hcil/treemap-history/index.shtml">vision on treemaps</ulink>.</para>
<!-- ==== Figure ==== -->
<figure id="baobab-treemap-fig">
<title>&app; Treemap Window</title>
<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="figures/baobab_treemaps.png" format="PNG"/>
</imageobject>
<textobject>
<phrase>Treemap's theory. Shows 2 treemap diagrams </phrase>
</textobject>
</mediaobject>
</screenshot>
</figure>
<!-- ==== End of Figure ==== -->
<para>Figure shows an example of treemap's theory. Each node
(as shown in the tree diagram) has a name (a letter) and an associated size
(a number). The size of leaves may represent for instance the size of individual
files, the size of non-leaf nodes is the sum of the sizes of its children.</para>
<para>The treemap is constructed via recursive subdivision of the initial rectangle.
The size of each sub-rectangle corresponds to the size of the node.
The direction of subdivision alternates per level: first horizontally,
next vertically, etcetera. As a result, the initial rectangle is partitioned
into smaller rectangles, such that the size of each rectangle reflects the size
of the leaf. The structure of the tree is also reflected in the treemap,
as a result of its construction. Color and annotation can
be used to give extra information about the leaves.</para>
<note><para>Treemaps are very effective when size is the most important feature to be
displayed.</para></note>
</sect1>
<!-- ================ Ringschart ================================ -->
<sect1 id="baobab-ringschart">
<title>Ringschart</title>
<para><guilabel>Ringschart</guilabel> is a graphical
representation of the disk usage by a concrete folder. When
launching the application, it is notified the usage of
the file system as it can be seen in the next figure:</para>
<!-- ==== Figure ==== -->
<figure id="baobab-filesystem_scan">
<title>&app; showing a ringschart with the file system usage</title>
<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="figures/baobab_ringschart1.png" format="PNG"/>
</imageobject>
<textobject>
<phrase>After launching the application, it is showed the
file system usage. Graphical representation on the right. </phrase>
</textobject>
</mediaobject>
</screenshot>
</figure>
<!-- ==== End of Figure ==== -->
<para>When you start scanning a folder, the tree of subfolders is
created and listed on the left side. Each row contains
information for the name, how much space it is taking up
(percentage and size in KB, MB or GB) and the number of items
(adding files and directories). When this process ends up,
the <guilabel>Ringschart</guilabel> is drawn on the right
side. If you stop it before it has been completed, only a
partial representation is done based on the directories whose
usage was computed.</para>
<!-- ==== Figure ==== -->
<figure id="baobab-folder_scan">
<title>&app; showing a ringschart with the usage of a folder</title>
<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="figures/baobab_ringschart2.png" format="PNG"/>
</imageobject>
<textobject>
<phrase>After scanning a folder. </phrase>
</textobject>
</mediaobject>
</screenshot>
</figure>
<!-- ==== End of Figure ==== -->
<para>The <guilabel>Ringschart</guilabel> is composed of a set of
nested rings around a central circle. This circle symbolizes the
root folder of the partial tree (that is, the folder that the
user has selected for scanning). Each ring represents a level in
the partial tree, so i.e. the subfolders of the root folder will
be represented in the first ring, and deeper levels in the tree
correspond to outer rings in the chart. Each subfolder is
represented by a sector of the ring, its angle being proportional
to the size of the folder's contents, and painted with a different
color to ease visualization. Up to five levels can be drawn; in
case that a folder in that last fifth level contains even more
subfolders, this situation will be pointed by the presence of a
black curve close to the edge of that folder's ring sector. When a
folder with no further subfolders is selected to be the root of
the partial tree, only the inner circle will be drawn. When the
mouse pointer hovers one of the folders in the graphic, it will be
highlighted and a tooltip will appear with information about its
name and size. If there are any subfolders, small gray tooltips
will appear, indicating their names. It's possible that not all of
the subfolders' names are displayed, to avoid overlappings.</para>
<para>You can go up and down the rows in the list (optionally
expanding those with subfolders), the graphic representation will
change using the selected folder as the root of the partial tree
to be represented. The folders can also be navigated from the
<guilabel>ringschart</guilabel> itself. If you click with the left
button of your mouse inside a folder, you'll move deeper by
setting the root of the graphic to that folder. If you press the
middle button (no matter the place as long as you click inside the
<guilabel>ringschart</guilabel> frame) you'll get the opposite
behavior, going back one step in the hierarchy.</para>
<para>The percentage of its parent's radius that is used by a given
folder is directly proportional to the relation between its own
size and its parent's. It's easy to understand that the size of
a folder is equal or smaller than its parent's. Although only
directories are shown in this graphical representation, files are
taken into account to calculate the amount of space occupied by
folders.</para>
</sect1>
</article>
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