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<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [ <!ENTITY % globalent SYSTEM "../../libs/global.ent"> <!-- NAMES --><!ENTITY canonical-name "Canonical Ltd."> <!ENTITY project-name "Ubuntu Documentation Project"> <!ENTITY ubuntu "<phrase>Ubuntu</phrase>"> <!ENTITY sg-title "Server Guide"> <!-- VERSIONS --><!ENTITY distro-version "Jaunty Jackalope"> <!ENTITY distro-rev "9.04"> <!ENTITY distro-release-date "April 2009"> <!ENTITY distro-short-codename "jaunty"> <!ENTITY distro-apt-cd-name "Ubuntu 9.04_Jaunty_Jackalope"> <!ENTITY linux-kernel-version "2.6.27"> <!ENTITY gcc-version "4.3.1"> <!ENTITY glibc-version "2.8"> <!ENTITY python-version "2.5"> <!ENTITY glossary SYSTEM "../common/C/glossary.xml"> <!-- LEGAL URLs --><!ENTITY legalnotice SYSTEM "../libs/C/legalnotice.xml"> <!ENTITY gpl-url '<ulink url="http://www.gnu.org/licenses/gpl.html">GNU General Public 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connecttoserver "<menuchoice><guimenu>Places</guimenu><guimenuitem>Connect to Server...</guimenuitem></menuchoice>"> <!ENTITY cowbell "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Sound & Video</guisubmenu><guimenuitem>Cowbell Music Organizer</guimenuitem> </menuchoice>"> <!ENTITY chromium "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Games</guisubmenu><guisubmenu>Chromium</guisubmenu></menuchoice>"> <!ENTITY computer-janitor "<menuchoice><guimenu>System</guimenu><guisubmenu>Administration</guisubmenu><guisubmenu>System Janitor</guisubmenu></menuchoice>"> <!ENTITY desktop-background "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Desktop Background</guimenuitem></menuchoice>"> <!ENTITY desktop-effects "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Appearance</guimenuitem><guimenuitem>Visual Effects</guimenuitem></menuchoice>"> <!ENTITY desktop-preferences 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</guisubmenu><guimenuitem>Gnome Partition Editor</guimenuitem></menuchoice>"> <!ENTITY graphics "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Graphics</guimenuitem></menuchoice>"> <!ENTITY gthumb "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Graphics</guimenuitem><guimenuitem>gThumb Image Viewer</guimenuitem></menuchoice>"> <!ENTITY gtkpod "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Sound & Video</guisubmenu><guimenuitem>gtkpod</guimenuitem></menuchoice>"> <!ENTITY gnucash "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Office</guimenuitem><guimenuitem>GnuCash Finance Management</guimenuitem></menuchoice>"> <!ENTITY gxine "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Sound & Video</guimenuitem><guimenuitem>gxine</guimenuitem></menuchoice>"> <!ENTITY home-folder "<menuchoice><guimenu>Places</guimenu><guimenuitem>Home Folder</guimenuitem></menuchoice>"> <!ENTITY homebank "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Office</guimenuitem><guimenuitem>HomeBank</guimenuitem></menuchoice>"> <!ENTITY hubackup "<menuchoice><guimenu>System</guimenu><guisubmenu>Administration</guisubmenu><guimenuitem>Home User Backup</guimenuitem></menuchoice>"> <!ENTITY hurestore "<menuchoice><guimenu>System</guimenu><guisubmenu>Administration</guisubmenu><guimenuitem>Home User Restore</guimenuitem></menuchoice>"> <!ENTITY inkscape "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Graphics</guimenuitem><guimenuitem>Inkscape SVG Vector Illustrator</guimenuitem></menuchoice>"> <!ENTITY internet "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Internet</guimenuitem></menuchoice>"> <!ENTITY kdevelop "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Programming</guisubmenu><guimenuitem>KDevelop</guimenuitem></menuchoice>"> <!ENTITY keyboard "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Keyboard</guimenuitem></menuchoice>"> <!ENTITY keyboard-shortcuts "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Keyboard Shortcuts</guimenuitem></menuchoice>"> <!ENTITY language-support "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Language Support</guimenuitem></menuchoice>"> <!ENTITY liferea "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Internet</guimenuitem><guimenuitem>Liferea Feed Reader</guimenuitem></menuchoice>"> <!ENTITY limewire "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Internet</guimenuitem><guimenuitem>LimeWire</guimenuitem></menuchoice>"> <!ENTITY lockscreen "<menuchoice><guimenu>System</guimenu><guimenuitem>Lock Screen</guimenuitem></menuchoice>"> <!ENTITY login-screen-setup "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Login Window</guimenuitem></menuchoice>"> <!ENTITY mahjongg "<menuchoice><guimenuitem>Applications</guimenuitem><guimenuitem>Games</guimenuitem><guimenuitem>Mahjongg</guimenuitem></menuchoice>"> <!ENTITY menu-editor "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Accessories</guisubmenu><guimenuitem>Applications Menu Editor</guimenuitem></menuchoice>"> <!ENTITY menus-and-toolbars "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Menus & Toolbars</guimenuitem></menuchoice>"> <!ENTITY monodevelop "<menuchoice><guimenuitem>Applications</guimenuitem><guimenuitem>Programming</guimenuitem><guimenuitem>MonoDevelop</guimenuitem></menuchoice>"> <!ENTITY monodoc "<menuchoice><guimenuitem>Applications</guimenuitem><guimenuitem>Programming</guimenuitem><guimenuitem>MonoDoc</guimenuitem></menuchoice>"> <!ENTITY mouse "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Mouse</guimenuitem></menuchoice>"> <!ENTITY mtink "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Accessories</guimenuitem><guimenuitem>mtink</guimenuitem></menuchoice>"> <!ENTITY music "<menuchoice><guimenu>Places</guimenu><guimenuitem>Music</guimenuitem></menuchoice>"> <!ENTITY multimedia-systems-selector "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Multimedia Systems Selector</guimenuitem></menuchoice>"> <!ENTITY ndisgtk "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Windows Wireless Drivers</guimenuitem></menuchoice>"> <!ENTITY network-proxy "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Network Proxy</guimenuitem></menuchoice>"> <!ENTITY network-tools "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Network Tools</guimenuitem></menuchoice>"> <!ENTITY networking "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Network</guimenuitem></menuchoice>"> <!ENTITY network-servers "<menuchoice><guimenu>Places</guimenu><guimenuitem>Network</guimenuitem></menuchoice>"> <!ENTITY neverball "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Games</guisubmenu><guisubmenu>Neverball</guisubmenu></menuchoice>"> <!ENTITY neverputt "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Games</guisubmenu><guisubmenu>Neverputt</guisubmenu></menuchoice>"> <!ENTITY nexuiz "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Games</guisubmenu><guisubmenu>Nexuiz</guisubmenu></menuchoice>"> <!ENTITY open-office "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Office</guimenuitem></menuchoice>"> <!ENTITY openoffice-base "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Office</guimenuitem><guimenuitem>OpenOffice.org Database</guimenuitem></menuchoice>"> <!ENTITY openoffice-draw "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Graphics</guimenuitem><guimenuitem>OpenOffice.org Draw</guimenuitem></menuchoice>"> <!ENTITY openoffice-presentation "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Office</guimenuitem><guimenuitem>OpenOffice.org Presentation</guimenuitem></menuchoice>"> <!ENTITY openoffice-spreadsheet "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Office</guimenuitem><guimenuitem>OpenOffice.org Spreadsheet</guimenuitem></menuchoice>"> <!ENTITY openoffice-writer "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Office</guimenuitem><guimenuitem>OpenOffice.org Word Processor</guimenuitem></menuchoice>"> <!ENTITY palmos-devices "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>PalmOS Devices</guimenuitem></menuchoice>"> <!ENTITY pan "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Internet</guimenuitem><guimenuitem>Pan Newsreader</guimenuitem></menuchoice>"> <!ENTITY photoprint "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Graphics</guimenuitem><guimenuitem>PhotoPrint</guimenuitem></menuchoice>"> <!ENTITY pidgin "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Internet</guimenuitem><guimenuitem>Pidgin Internet Messenger</guimenuitem></menuchoice>"> <!ENTITY power-management "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Power Management</guimenuitem></menuchoice>"> <!ENTITY ppracer "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Games</guisubmenu><guisubmenu>Planet Penguin Racer</guisubmenu></menuchoice>"> <!ENTITY preferences "<menuchoice><guimenu>System</guimenu><guisubmenu>Preferences</guisubmenu></menuchoice>"> <!ENTITY preferred-applications "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Preferred Applications</guimenuitem></menuchoice>"> <!ENTITY print "<menuchoice><guimenu>File</guimenu><guimenuitem>Print</guimenuitem></menuchoice>"> <!ENTITY printing "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Printing</guimenuitem></menuchoice>"> <!ENTITY qtparted "<menuchoice><guimenu>Applications</guimenu><guimenuitem>System Tools</guimenuitem><guimenuitem>QTParted</guimenuitem></menuchoice>"> <!ENTITY remote-desktop "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Remote Desktop</guimenuitem></menuchoice>"> <!ENTITY removable-drives-and-media "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Removable Drives and Media</guimenuitem></menuchoice>"> <!ENTITY realplayer "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Sound & Video</guimenuitem><guimenuitem>RealPlayer 11</guimenuitem></menuchoice>"> <!ENTITY restricted-manager "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Hardware Drivers</guimenuitem></menuchoice>"> <!ENTITY rhythmbox "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Sound & Video</guimenuitem><guimenuitem>Rhythmbox Music Player</guimenuitem></menuchoice>"> <!ENTITY route-planner "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Internet</guimenuitem><guimenuitem>aMule</guimenuitem></menuchoice>"> <!ENTITY scorched3d "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Games</guisubmenu><guimenuitem>Scorched 3D</guimenuitem></menuchoice>"> <!ENTITY screen-resolution "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Screen Resolution</guimenuitem></menuchoice>"> <!ENTITY screensaver "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Screensaver</guimenuitem></menuchoice>"> <!ENTITY scribus "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Office</guimenuitem><guimenuitem>Scribus</guimenuitem></menuchoice>"> <!ENTITY serpentine "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Sound & Video</guimenuitem><guimenuitem>Serpentine Audio CD Creator</guimenuitem></menuchoice>"> <!ENTITY services "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Services</guimenuitem></menuchoice>"> <!ENTITY sessions "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Sessions</guimenuitem></menuchoice>"> <!ENTITY shared-folders "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Shared Folders</guimenuitem></menuchoice>"> <!ENTITY skype "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Internet</guimenuitem><guimenuitem>Skype</guimenuitem></menuchoice>"> <!ENTITY software-properties "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Software Sources</guimenuitem></menuchoice>"> <!ENTITY software-sources "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Software Sources</guimenuitem></menuchoice>"> <!ENTITY sound "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Sound</guimenuitem></menuchoice>"> <!ENTITY soundandvideo "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Sound & Video</guimenuitem></menuchoice>"> <!ENTITY soundjuicer "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Sound & Video</guimenuitem><guimenuitem>Audio CD Extractor</guimenuitem></menuchoice>"> <!ENTITY supertux "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Games</guisubmenu><guisubmenu>SuperTux</guisubmenu></menuchoice>"> <!ENTITY shutdown "<menuchoice><guimenu>System</guimenu><guimenuitem>Shut Down...</guimenuitem></menuchoice>"> <!ENTITY synaptic "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Synaptic Package Manager</guimenuitem></menuchoice>"> <!ENTITY system-monitor "<menuchoice><guimenu>System</guimenu><guisubmenu>Administration</guisubmenu><guimenuitem>System Monitor</guimenuitem></menuchoice>"> <!ENTITY systemtools "<menuchoice><guimenu>Applications</guimenu><guimenuitem>System Tools</guimenuitem></menuchoice>"> <!ENTITY terminal "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Accessories</guimenuitem><guimenuitem>Terminal</guimenuitem></menuchoice>"> <!ENTITY text-editor "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Accessories</guimenuitem><guimenuitem>Text Editor</guimenuitem></menuchoice>"> <!ENTITY theme "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Theme</guimenuitem></menuchoice>"> <!ENTITY thunderbird "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Internet</guimenuitem><guimenuitem>Mozilla Thunderbird Mail/News</guimenuitem></menuchoice>"> <!ENTITY time-date "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Time and Date</guimenuitem></menuchoice>"> <!ENTITY totem "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Sound & Video</guimenuitem><guimenuitem>Movie Player</guimenuitem></menuchoice>"> <!ENTITY touchpad "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Touchpad</guimenuitem></menuchoice>"> <!ENTITY tremulous "<menuchoice><guimenu>Applications</guimenu><guisubmenu>Games</guisubmenu><guisubmenu>Tremulous</guisubmenu></menuchoice>"> <!ENTITY ubuntu-update-manager "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Ubuntu Update Manager</guimenuitem></menuchoice>"> <!ENTITY update-manager "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Update Manager</guimenuitem></menuchoice>"> <!ENTITY users "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Users and Groups</guimenuitem></menuchoice>"> <!ENTITY users-groups "<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Users and Groups</guimenuitem></menuchoice>"> <!ENTITY windows "<menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Windows</guimenuitem></menuchoice>"> <!ENTITY wireshark "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Internet</guimenuitem><guimenuitem>Wireshark</guimenuitem></menuchoice>"> <!ENTITY xchat-gnome "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Internet</guimenuitem><guimenuitem>Xchat-GNOME IRC Chat</guimenuitem></menuchoice>"> <!ENTITY xine "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Sound & Video</guimenuitem><guimenuitem>xine</guimenuitem></menuchoice>"> <!ENTITY xmms "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Sound & Video</guimenuitem><guimenuitem>XMMS</guimenuitem></menuchoice>"> <!ENTITY xsane "<menuchoice><guimenu>Applications</guimenu><guimenuitem>Graphics</guimenuitem><guimenuitem>XSane Image Scanner</guimenuitem></menuchoice>"> <!ENTITY language "en"> ]> <article lang="zh_CN"> <articleinfo> <title>使用命令行</title> <legalnotice id="legal"> <title>贡献与许可</title> <para>此文档由 Ubuntu 文档小组维护 (https://wiki.ubuntu.com/DocumentationTeam)。贡献者的列表位于<ulink url="../../libs/C/contributors.xml">贡献者页面</ulink></para> <para>本文档系基于 Creative Commons ShareAlike 2.5 License (CC-BY-SA) 授权许可发布。</para> <para>你可以基于本许可的条款而自由地对 Ubuntu 文档源代码进行修正、扩充以及改善。所有衍生作品必须基于本许可发布。</para> <para>发布本文档是希望它能有用,但我们并不提供任何担保;如免责声明中所述,我们不对其适销性或特定用途的适用性提供默示担保。</para> <para>许可证的副本位于:<ulink url="/usr/share/ubuntu-docs/libs/C/ccbysa.xml">Creative Commons ShareAlike License</ulink>.</para> </legalnotice> <copyright> <year>2008</year> <holder>Canonical 公司和 <ulink url="https://launchpad.net/~ubuntu-core-doc">Ubuntu 文档项目</ulink> 的成员</holder> </copyright> <publisher> <publishername>Ubuntu 文档项目</publishername> </publisher> </articleinfo> <sect1 id="using-this-guide" status="review"> <title>使用本向导</title> <para> <emphasis>"在 Linux GUIs(图形用户界面)下,你可以通过指向、点击和拖拽鼠标就可以圆满地完成工作,而无需阅读大量的文档。传统的 Unix 环境是一个 CLI(命令行界面),你只能通过键入命令来告诉计算机要做什么。虽然它更快也更强大,但它知道需要具体的命令是什么。"--选自 <emphasis role="strong">手册介绍</emphasis></emphasis> </para> <para>这份指南将帮助你熟悉基本的 GNU/Linux 用户接口命令。这不是一个完整的命令行指南,而只是作为一个补充介绍 Ubuntu 图形界面的工具。</para> <para> <itemizedlist> <listitem> <para>所有命令名、文件名或路径都会是<command>等宽(monospace)字体</command>。</para> </listitem> <listitem> <para>这份指南中的所有命令都可以在<application>终端</application>的提示符后面键入,它将会被显示为: <screen>要输入的命令</screen></para> </listitem> <listitem> <para><emphasis role="strong">注意,Linux是大小写敏感的。</emphasis> User, user, 和 USER 对 Linux 来说都是不同的。</para> </listitem> </itemizedlist> </para> </sect1> <sect1 id="starting-terminal" status="review"> <title>启动一个终端</title> <para>要打开一个<application>终端</application>,请按照下面的步骤:</para> <para> <itemizedlist> <listitem> <para>选择<menuchoice><guimenu>应用程序</guimenu><guimenuitem>附件</guimenuitem><guimenuitem>终端</guimenuitem></menuchoice>;</para> </listitem> <listitem> <para>或者键入<keycombo><keycap>Alt</keycap><keycap>F2</keycap></keycombo>并键入<command>gnome-terminal</command>。</para> </listitem> </itemizedlist> </para> </sect1> <sect1 id="files-directories-commands" status="review"> <title>文件和目录命令</title> <sect2 id="cd" status="review"> <title>cd</title> <para><command>cd</command>命令改变目录。 打开终端后您位于主目录。要在系统中移动,需要使用 <command>cd</command>命令。</para> <itemizedlist> <listitem> <para>要浏览到根目录,键入:<screen>cd /</screen></para> </listitem> <listitem> <para>要浏览你的主目录,键入:<screen>cd</screen>或者<screen>cd ~</screen></para> <note> <para><command>~</command>代表当前用户的主目录。正如上面介绍的, <command>cd ~</command> 等价于 <command>cd /home/username/</command>。 然而,当作为 root 用户时(例如使用 <command>sudo</command>命令), <command>~</command> 指向 <filename class="directory">/root</filename>。当使用 <command>sudo</command>命令时,需要提供主目录的完整路径。</para> </note> </listitem> <listitem> <para>要浏览上一层目录,键入:<screen>cd ..</screen></para> </listitem> <listitem> <para>要浏览先前的目录(或者后退), 键入: <screen>cd -</screen></para> </listitem> <listitem> <para>如需跨过多级目录变更当前目录,需要指明您想进入的目录的完整路径。例子一,若直接进入目录 <filename class="directory">/var/</filename> 下的子目录 <filename class="directory">/www</filename>,则键入:<screen>cd /var/www</screen>。例子二,若进入 home 目录下的子目录 <filename class="directory">Desktop</filename>,则键入:<screen>cd ~/Desktop</screen>。</para> </listitem> </itemizedlist> </sect2> <sect2 id="pwd" status="review"> <title>pwd</title> <para><command>pwd</command> 命令用于显示当前所在的目录 (<acronym>pwd</acronym> 代表 <quote>print working directory</quote>)。例如在 <filename class="directory">Desktop</filename> 目录输入 <screen>pwd</screen>,将会显示 <computeroutput>/home/username/Desktop</computeroutput>。<note> <para><application>GNOME 终端</application>也会在窗口的标题栏显示该信息。</para> </note></para> </sect2> <sect2 id="ls" status="review"> <title>ls</title> <para><command>ls</command> 输出当前目录的文件列表。例如,输入<screen>ls ~</screen> 将会显示用户主目录中的文件。</para> <para><command>ls</command> 命令加上 <command>-l</command> 参数,将会列出除文件名外的一些其他信息,如文件的所有者,以及当前用户对文件所拥有的权限。</para> </sect2> <sect2 id="cp" status="review"> <title>cp</title> <para><command>cp</command> 命令用于复制一个文件。例如输入:<screen>cp foo bar</screen> 将会创建 <filename>foo</filename> 的一个拷贝,并命名为 <filename>bar</filename>。<filename>foo</filename> 则保持不变。</para> </sect2> <sect2 id="mv" status="review"> <title>mv</title> <para><command>mv</command> 命令用于重命名文件或者将文件移到别处。举例:<screen>mv foo bar</screen> 表示将文件 <filename>foo</filename> 重命名为 <filename>bar</filename>。<screen>mv foo ~/Desktop</screen> 表示将文件<filename>foo</filename> 移到你的<filename class="directory">Desktop</filename> 目录下并保持原来的名字。</para> </sect2> <sect2 id="rm" status="review"> <title>rm</title> <para><command>rm</command> 用来删除文件。 <screen>rm foo</screen> 表示从当前目录删除文件 <filename>foo</filename>。</para> <para>默认, <command>rm</command> 将不移除目录。为了移除目录,你必须使用 <command>-R</command> 选项。例如,<screen>rm -R foobar</screen> 将移除目录 foobar, <emphasis role="strong">和它的所有内容!</emphasis></para> </sect2> <sect2 id="mkdir" status="review"> <title>mkdir</title> <para><command>mkdir</command>创建一个目录。例如输入: <screen>mkdir music</screen> 将会在当前目录创建一个名为 <filename class="directory">music</filename> 的文件夹。</para> </sect2> </sect1> <sect1 id="sys-info-commands" status="review"> <title>系统信息命令</title> <sect2 id="df" status="review"> <title>df</title> <para>命令<command>df</command>显示所有分区文件系统的磁盘使用量。<screen>df -h</screen>将会以 megabytes(M)和gigabytes(G)方式代替区块显示(<emphasis role="strong">-h</emphasis>意思是 "人类可读的")。</para> </sect2> <sect2 id="free" status="review"> <title>free</title> <para>命令<command>free</command>在系统中的空余和已用内存情况。<screen>free -m</screen>将信息以megabytes形式显示出来,对目前计算机来说可能是最有用的。</para> </sect2> <sect2 id="top" status="review"> <title>top</title> <para>命令<command>top</command>显示了你的GNU/Linux系统的信息,正在运行的进程和系统资源,包括 CPU,内存 & 交换去的使用情况和正在运行的任务数。要退出<application>top</application>,按 <keycap>q</keycap>。</para> </sect2> <sect2 id="uname" status="review"> <title>uname</title> <para>命令<command>uname</command>加上<emphasis role="strong">-a</emphasis>选项会打印出所有的系统信息,包括机器名,内核名&版本和其他的一些细节 对于检查你在使用何种内核是非常有用的。</para> </sect2> <sect2 id="lsb_release" status="review"> <title>lsb_release</title> <para><command>lsb_release</command> 命令加 <emphasis role="strong">-a</emphasis> 参数会打印出当前正系统的发行版本。例如输入: <screen>lsb_release -a</screen> 将会显示: <screen> 无 LSB 模块可用。 发行标识:Ubuntu 说明:Ubuntu 9.04 版本:9.04 代号:jaunty</screen></para> </sect2> </sect1> <sect1 id="elevated-privileges" status="review"> <title>使用提升的权限来执行命令</title> <para>下列命令将需要<command>sudo</command>作为前缀。参见<ulink url="https://help.ubuntu.com/community/RootSudo">RootSudo</ulink>获得使用<command>sudo</command>的信息。</para> <sect2 id="add-group" status="review"> <title>添加一个新组</title> <para>命令<command>addgroup</command>用于创建系统中的新组。要新建一个组,键入:<screen>addgroup 新组名</screen> 以上命令将会创建一个称为<emphasis role="strong">新组名</emphasis>的新组。</para> </sect2> <sect2 id="add-user" status="review"> <title>添加一个新用户</title> <para><command>adduser</command>用于创建系统中的新用户。要新建一个用户,键入:<screen>adduser 新用户名</screen> 以上命令将会创建一个称为<emphasis role="strong">新用户名</emphasis>的新用户。</para> <para>要给新用户分配密码,可以用<command>passwd</command>命令:<screen>passwd newuser</screen></para> <para>最后,要给安排新用户到一个新建的组中,键入:<screen>adduser newuser newgroup</screen></para> </sect2> </sect1> <sect1 id="options" status="review"> <title>选项:</title> <para>一条命令的默认行为通常可以通过添加<emphasis role="strong">-- <emphasis>选项</emphasis></emphasis>来作修改。比如,命令<link linkend="ls"><command>ls</command></link>有选项<emphasis role="strong">-s</emphasis>,这样<command>ls -s</command>将会在列举时包含文件大小 信息。也有<emphasis role="strong">-h</emphasis>选项来以“可读”方式显示大小信息。</para> <para>选项通常是聚集在一起的,所以<screen>ls -sh</screen>和命令<screen>ls -s -h</screen>是等价的 大部分选项有较长的版本,以两条短横线代替一条短横线作为前缀,所以<screen>ls --size --human-readable</screen>和上面的命令是一样的。</para> </sect1> <sect1 id="man-help" status="review"> <title>"Man" 和获得帮助</title> <para><emphasis role="strong"><emphasis>command</emphasis> --help</emphasis>和<emphasis role="strong">man<emphasis>command</emphasis></emphasis>是在命令行下两种最有用的工具。</para> <para>事实上所有的命令理解选项<emphasis role="strong">-h</emphasis> (或<emphasis role="strong">--help</emphasis>),这会生成命令的使用说明简述和它的选项,然后退回到命令提示符下。键入<screen>man -h</screen>或<screen>man --help</screen>来试试看。</para> <para>Linux中的每一条命令和几乎每一个应用程序都有man(说明手册)文件,所以找到他们是很容易的,只需键入<command>man command</command>来获得指定定命令的说明手册。比如,<screen>man mv</screen>会获得<command>mv</command> (移动)的说明手册。</para> <para>使用方向键在man文件中上下移动,用<keycap>q</keycap>键退回到命令提示符处。</para> <para><screen>man man</screen>会获得<command>man</command>命令的使用说明,这将是一个很好的开始。</para> <para><screen>man intro</screen>特别有用 - 它显示了"用户命令介绍"这样一篇简明清晰的Linux命令行说明性文章。</para> <para>也有<command>info</command>页,大部分都比<command>man</command>页要更多更丰富。试试 <screen>info info</screen>来获得info页的介绍性帮助。</para> <sect2 id="searching-ma" status="review"> <title>在手册(man)文件中寻找</title> <para>如果你不搞不清楚应该使用哪个命令和应用程序, 你可以试试在man手册文件里寻找答案。</para> <itemizedlist> <listitem> <para><command>man -k foo</command>,会搜索<emphasis>foo</emphasis>的man文件。试试<screen>man -k nautilus</screen>看一下它是如何工作的。<note> <para>这和<command>apropos</command>命令是一样的。</para> </note></para> </listitem> <listitem> <para><command>man -f foo</command>,只搜索你系统里的man文件的标题。比如,试着用<screen>man -f gnome</screen><note> <para>这和<command>whatis</command>命令是一样的。</para> </note></para> </listitem> </itemizedlist> </sect2> </sect1> <sect1 id="cut-paste" status="review"> <title>剪切与粘贴</title> <para>您经常会被要求在终端中粘贴命令。</para> <para>您可能会不明白为什么您从网页上用<keycombo><keycap>Ctrl</keycap><keycap>C</keycap></keycombo>复制下来的文本没法用<keycombo><keycap>Ctrl</keycap><keycap>V</keycap></keycombo>粘贴,其实 shell 的粘贴使用的是另一个组合键<keycombo><keycap>Shift</keycap><keycap>Insert</keycap></keycombo>。该操作同样也能用鼠标完成,右键点击终端并在菜单中点击<menuchoice><guimenuitem>粘贴</guimenuitem></menuchoice>即可。</para> <para>您也可以在您的网页浏览器中选中所需命令,接着在终端中点击鼠标中键(或者在双键鼠标上同时按下按键)即可粘贴所选命令。</para> <note><para>这些动作的涵义可能与其它模拟终端完全不同。详情请参考您的模拟器文档。</para></note> </sect1> <sect1 id="other-things" status="review"> <title>其他有用的内容</title> <sect2 id="save-typing" status="review"> <title>节省输入</title> <informaltable> <tgroup cols="3"> <colspec colname="col_0"/> <colspec colname="col_1"/> <colspec colname="col_2"/> <tbody> <row> <entry align="left" colsep="1" rowsep="1"> <para><keycap>向上箭头</keycap>或<keycombo><keycap>Ctrl</keycap><keycap>p</keycap></keycombo></para> </entry> <entry align="left" colsep="1" namest="col_1" rowsep="1" nameend="col_2"> <para>在你之前输入的命令中切换</para> </entry> </row> <row> <entry align="left" colsep="1" rowsep="1"> <para><keycap>向下箭头</keycap>或<keycombo><keycap>Ctrl</keycap><keycap>n</keycap></keycombo></para> </entry> <entry align="left" colsep="1" namest="col_1" rowsep="1" nameend="col_2"> <para>使你返回到最近输入的命令</para> </entry> </row> <row> <entry colsep="1" rowsep="1"> <para> <keycap>回车</keycap> </para> </entry> <entry align="left" colsep="1" namest="col_1" rowsep="1" nameend="col_2"> <para>当你有需要的命令时</para> </entry> </row> <row> <entry align="left" colsep="1" rowsep="1"> <para> <keycap>Tab 键</keycap> </para> </entry> <entry align="left" colsep="1" namest="col_1" rowsep="1" nameend="col_2"> <para>一个极其有用的特性。它能够自动补全你任何命令或文件名,如果只有一个选择时,当然它还会列出其他可能的选项。</para> </entry> </row> </tbody> </tgroup> </informaltable> </sect2> <sect2 id="change-text" status="review"> <title>更改文本</title> <para>鼠标失效。使用<keycap>左右箭头键</keycap>来在行内移动。</para> <para>当光标位于你想操作那一行,键入文本<emphasis>inserts</emphasis>,这不会覆盖已有内容。</para> <informaltable> <tgroup cols="3"> <colspec colname="col_0"/> <colspec colname="col_1"/> <colspec colname="col_2"/> <tbody> <row> <entry colsep="1" rowsep="1"> <para><keycombo><keycap>Ctrl</keycap><keycap>a</keycap></keycombo> 或 <keycap>Home</keycap></para> </entry> <entry align="left" colsep="1" namest="col_1" rowsep="1" nameend="col_2"> <para>移动光标到一行的<emphasis>开始</emphasis>处.</para> </entry> </row> <row> <entry colsep="1" rowsep="1"> <para><keycombo><keycap>Ctrl</keycap><keycap>e</keycap></keycombo> 或<keycap>End</keycap></para> </entry> <entry align="left" colsep="1" namest="col_1" rowsep="1" nameend="col_2"> <para>移动光标到行的<emphasis>末尾</emphasis></para> </entry> </row> <row> <entry colsep="1" rowsep="1"> <para> <keycombo> <keycap>Ctrl</keycap> <keycap>k</keycap> </keycombo> </para> </entry> <entry align="left" colsep="1" namest="col_1" rowsep="1" nameend="col_2"> <para>删除当前光标处到本行结尾的所有内容。</para> </entry> </row> <row> <entry colsep="1" rowsep="1"> <para> <keycombo> <keycap>Ctrl</keycap> <keycap>u</keycap> </keycombo> </para> </entry> <entry align="left" colsep="1" namest="col_1" rowsep="1" nameend="col_2"> <para>删除当前行的内容。</para> </entry> </row> <row> <entry colsep="1" rowsep="1"> <para> <keycombo> <keycap>Ctrl</keycap> <keycap>w</keycap> </keycombo> </para> </entry> <entry align="left" colsep="1" namest="col_1" rowsep="1" nameend="col_2"> <para>删除光标前的单词。</para> </entry> </row> </tbody> </tgroup> </informaltable> </sect2> </sect1> <sect1 id="more-info" status="review"> <title>更多信息</title> <para>下面的在线指南可用</para> <itemizedlist> <listitem> <para><ulink url="https://help.ubuntu.com/community/AptGetHowto">如何使用apt-get</ulink> - 使用apt-get在命令行下安装软件包.</para> </listitem> <listitem> <para><ulink url="https://help.ubuntu.com/community/Repositories/CommandLine"> 在命令行下编辑源</ulink> - 通过命令行添加Universe/Multiverse源(注: Universe源提供的是非Ubuntu 官方维护的的自由软件,Multiverse源提供的是非Ubuntu官方维护的的非自由软件)。</para> </listitem> <listitem> <para><ulink url="https://help.ubuntu.com/community/grep">如何使用grep</ulink> - grep是一个在命令行下非常有用的搜索工具。</para> </listitem> <listitem> <para><ulink url="https://help.ubuntu.com/community/find">find </ulink> - 在命令行下查找文件.</para> </listitem> <listitem> <para><ulink url="https://help.ubuntu.com/community/CommandlineHowto"> CommandlineHowto</ulink> - 比本基本指南有更多讲述,但仍未完成.</para> </listitem> <listitem> <para><ulink url="https://help.ubuntu.com/community/HowToReadline"> 如何使用readline</ulink> - 提供一些相对高级的自定义命令行的信息.</para> </listitem> </itemizedlist> <para>要获得Linux命令行的更多细节的介绍,请参见:</para> <itemizedlist> <listitem> <para>ulink url="http://linuxcommand.org/"/>- 基本BASH介绍,包括BASH脚本编程。 (注:BASH是一个常用Shell, 它有40个内建命令和12个命令行参数)</para> </listitem> <listitem> <para><ulink url="http://linuxsurvival.com/index.php"/>- 基于Java的介绍</para> </listitem> <listitem> <para><ulink url="http://rute.2038bug.com/index.html.gz"/>- 一个关于系统管理内容非常丰富的在线电子书, 几乎囊括了所有命令行的内容.</para> </listitem> </itemizedlist> </sect1> </article>