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| author |   Patrick J Volkerding <volkerdi@slackware.com> | 2009-08-26 10:00:38 -0500 |
|---|---|---|
| committer |   Eric Hameleers <alien@slackware.com> | 2018-05-31 22:41:17 +0200 |
| commit | 5a12e7c134274dba706667107d10d231517d3e05 (patch) | |
| tree | 55718d5acb710fde798d9f38d0bbaf594ed4b296 /slackbook/html/vi-modes.html | |
| download | current-5a12e7c134274dba706667107d10d231517d3e05.tar.gz current-5a12e7c134274dba706667107d10d231517d3e05.tar.xz | |
Slackware 13.0slackware-13.0
Wed Aug 26 10:00:38 CDT 2009
Slackware 13.0 x86_64 is released as stable! Thanks to everyone who
helped make this release possible -- see the RELEASE_NOTES for the
credits. The ISOs are off to the replicator. This time it will be a
6 CD-ROM 32-bit set and a dual-sided 32-bit/64-bit x86/x86_64 DVD.
We're taking pre-orders now at store.slackware.com. Please consider
picking up a copy to help support the project. Once again, thanks to
the entire Slackware community for all the help testing and fixing
things and offering suggestions during this development cycle.
As always, have fun and enjoy! -P.
Diffstat (limited to 'slackbook/html/vi-modes.html')
| -rw-r--r-- | slackbook/html/vi-modes.html | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/slackbook/html/vi-modes.html b/slackbook/html/vi-modes.html new file mode 100644 index 000000000..df8387976 --- /dev/null +++ b/slackbook/html/vi-modes.html @@ -0,0 +1,200 @@ +<!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>Modes</title> +<meta name="GENERATOR" content="Modular DocBook HTML Stylesheet Version 1.7" /> +<link rel="HOME" title="Slackware Linux Essentials" href="index.html" /> +<link rel="UP" title="Vi" href="vi.html" /> +<link rel="PREVIOUS" title="Vi" href="vi.html" /> +<link rel="NEXT" title="Opening Files" href="vi-opening-files.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="SECT1" 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="vi.html" +accesskey="P">Prev</a></td> +<td width="80%" align="center" valign="bottom">Chapter 16 Vi</td> +<td width="10%" align="right" valign="bottom"><a href="vi-opening-files.html" +accesskey="N">Next</a></td> +</tr> +</table> + +<hr align="LEFT" width="100%" /> +</div> + +<div class="SECT1"> +<h1 class="SECT1"><a id="VI-MODES" name="VI-MODES">16.2 Modes</a></h1> + +<p><tt class="COMMAND">vi</tt> operates in various modes, which are used to accomplish +various tasks. When you first start <tt class="COMMAND">vi</tt>, you are placed into +command mode. From this point, you can issue various commands to manipulate text, move +around in the file, save, quit, and change modes. Editing the text is done in insert +mode. You can quickly move between modes with a variety of keystrokes, which are +explained below.</p> + +<div class="SECT2"> +<h2 class="SECT2"><a id="VI-MODES-COMMAND-MODE" name="VI-MODES-COMMAND-MODE">16.2.1 +Command Mode</a></h2> + +<p>You are first placed into command mode. From this mode, you cannot directly enter text +or edit what is already there. However, you can manipulate the text, search, quit, save, +load new files, and more. This is intended only to be an introduction to the command +mode. For a description of the various commands, see <a href="vi-keys.html">Section +16.7</a>.</p> + +<p>Probably the most often used command in command mode is changing to insert mode. This +is accomplished by hitting the <b class="KEYCAP">i</b> key. The cursor changes shapes, +and <span class="emphasis"><i class="EMPHASIS">-- INSERT --</i></span> is displayed at +the bottom of the screen (note that this does not happen in all clones of <tt +class="COMMAND">vi</tt>). From there, all your keystrokes are entered into the current +buffer and are displayed to the screen. To get back into command mode, hit the <b +class="KEYCAP">ESCAPE</b> key.</p> + +<p>Command mode is also where you move around in the file. On some systems, you can use +the arrow keys to move around. On other systems, you may need to use the more traditional +keys of “<b class="KEYCAP">hjkl</b>”. Here is a simple listing of how these +keys are used to move around:</p> + +<div class="INFORMALTABLE"><a id="AEN5604" name="AEN5604"></a> +<table border="0" frame="void" width="100%" class="CALSTABLE"> +<col width="25%" /> +<col width="75%" /> +<tbody> +<tr> +<td><b class="KEYCAP">h</b></td> +<td>move left one character</td> +</tr> + +<tr> +<td><b class="KEYCAP">j</b></td> +<td>move down one character</td> +</tr> + +<tr> +<td><b class="KEYCAP">k</b></td> +<td>move up one character</td> +</tr> + +<tr> +<td><b class="KEYCAP">l</b></td> +<td>move right one character</td> +</tr> +</tbody> +</table> +</div> + +<p>Simply press a key to move. As you will see later, these keys can be combined with a +number to move much more efficiently.</p> + +<p>Many of the commands that you will use in command mode begin with a colon. For +example, quitting is <b class="KEYCAP">:q</b>, as discussed earlier. The colon simply +indicates that it is a command, while the “<b class="KEYCAP">q</b>” tells <tt +class="COMMAND">vi</tt> to quit. Other commands are an optional number, followed by a +letter. These commands do not have a colon before them, and are generally used to +manipulate the text.</p> + +<p>For example, deleting one line from a file is accomplished by hitting <b +class="KEYCAP">dd</b>. This will remove the line that the cursor is on. Issuing the +command <b class="KEYCAP">4dd</b> would tell <tt class="COMMAND">vi</tt> to remove the +line that the cursor is on and the three after that. In general, the number tells <tt +class="COMMAND">vi</tt> how many times to perform the command.</p> + +<p>You can combine a number with the movement keys to move around several characters at a +time. For example, <b class="KEYCAP">10k</b> would move up ten lines on the screen.</p> + +<p>Command mode can also be used to cut and paste, insert text, and read other files into +the current buffer. Copying text is accomplished with the <b class="KEYCAP">y</b> key (<b +class="KEYCAP">y</b> stands for yank). Copying the current line is done by typing <b +class="KEYCAP">yy</b>, and this can be prefixed with a number to yank more lines. Then, +move to the location for the copy and hit <b class="KEYCAP">p</b>. The text is pasted on +the line after the current one.</p> + +<p>Cutting text is done by typing <b class="KEYCAP">dd</b>, and <b class="KEYCAP">p</b> +can be used to paste the cut text back into the file. Reading in text from another file +is a simple procedure. Just type <b class="KEYCAP">:r</b>, followed by a space and the +file name that contains the text to be inserted. The file's contents will be pasted into +the current buffer on the line after the cursor. More sophisticated <tt +class="COMMAND">vi</tt> clones even contain filename completion similar to the +shell's.</p> + +<p>The final use that will be covered is searching. Command mode allows for simple +searching, as well as complicated search-and-replace commands that make use of a powerful +version of regular expressions. A complete discussion of regular expressions is beyond +the scope of this chapter, so this section will only cover simple means of searching.</p> + +<p>A simple search is accomplished by hitting the <b class="KEYCAP">/</b> key, followed +by the text that you are searching for. <tt class="COMMAND">vi</tt> will search forward +from the cursor to the end of the file for a match, stopping when it finds one. Note that +inexact matches will cause <tt class="COMMAND">vi</tt> to stop as well. For example, a +search for “<span class="emphasis"><i class="EMPHASIS">the</i></span>” will +cause <tt class="COMMAND">vi</tt> to stop on “<span class="emphasis"><i +class="EMPHASIS">then</i></span>”, “<span class="emphasis"><i +class="EMPHASIS">therefore</i></span>”, and so on. This is because all of those +words do match “<span class="emphasis"><i +class="EMPHASIS">the</i></span>”.</p> + +<p>After <tt class="COMMAND">vi</tt> has found the first match, you can continue on to +the next match simply by hitting the <b class="KEYCAP">/</b> key followed by enter. You +can also search backwards through the file by replacing the slash with the <b +class="KEYCAP">?</b> key. For example, searching backwards through the file for +“<span class="emphasis"><i class="EMPHASIS">the</i></span>” would be +accomplished by typing <b class="KEYCAP">?the</b>.</p> +</div> + +<div class="SECT2"> +<h2 class="SECT2"><a id="VI-MODES-INSET-MODE" name="VI-MODES-INSET-MODE">16.2.2 Insert +Mode</a></h2> + +<p>Inserting and replacing text is accomplished in insert mode. As previously discussed, +you can get into insert mode by hitting <b class="KEYCAP">i</b> from command mode. Then, +all text that you type is entered into the current buffer. Hitting the <b +class="KEYCAP">ESCAPE</b> key takes you back into command mode.</p> + +<p>Replacing text is accomplished in several ways. From command mode, hitting <b +class="KEYCAP">r</b> will allow you to replace the one character underneath the cursor. +Just type the new character and it will replace the one under the cursor. You will then +be immediately placed back into command mode. Hitting <b class="KEYCAP">R</b> allows you +to replace as many characters as you'd like. To get out of this replacement mode, just +hit <b class="KEYCAP">ESCAPE</b> to go back into command mode.</p> + +<p>There is yet another way to toggle between insertion and replacement. Hitting the <b +class="KEYCAP">INSERT</b> key from command mode will take you into insert mode. Once you +are in insert mode, the keyboard's <b class="KEYCAP">INSERT</b> key serves as a toggle +between insert and replace. Hitting it once will allow you to replace. Hitting it once +more will once again allow you to insert text.</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="vi.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="vi-opening-files.html" +accesskey="N">Next</a></td> +</tr> + +<tr> +<td width="33%" align="left" valign="top">Vi</td> +<td width="34%" align="center" valign="top"><a href="vi.html" accesskey="U">Up</a></td> +<td width="33%" align="right" valign="top">Opening Files</td> +</tr> +</table> +</div> +</body> +</html> + |