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bvi/html/quick.html
Gerhard Bürgmann 12a0ed970c bvi-1.3.2.src.tar.gz
2015-02-20 10:59:12 -05:00

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<!DOCTYPE html PUBLIC "-//W3C/DTD HTML 3.2 Final//EN">
<html><head>
<title>BVI: Quick Tutorial</title>
<link rel=stylesheet type="text/css" href="bvi.css">
</head><body bgcolor="#ffffff" background="gif/bg2.gif">
<a name="top"></a>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr><td width="1%" valign="top" align="center">
<img src="gif/dot.gif" width="130" height="1" alt="">
<hr noshade width="60%">
<p>
<a class="thl" href="index.html">Home</a><br>
</p>
<p>
<font color="#ffffff" class="thl">Quick Tutorial<br></font>
<a class="ths" href="qt_edit.html">Editing Files</a><br>
<a class="ths" href="qt_search.html">Search Commands</a><br>
<a class="ths" href="qt_bit.html">Bit-wise Operations</a><br>
<a class="ths" href="qt_find.html">Find and Replace</a><br>
<a class="ths" href="qt_yank.html">Yank and Put</a><br>
<a class="ths" href="qt_set.html">Settings</a><br>
<a class="ths" href="qt_partial.html">Partial File Read</a><br>
</p>
<p>
<a class="thl" href="download.html">Download</a><br>
</p>
<p>
<a class="thl" href="install.html">Installation</a><br>
</p>
<p>
<a class="thl" href="overview.html">Command Overview</a><br>
</p>
<p>
<a class="thl" href="bmore.html">bmore</a><br>
</p>
<p>
<a class="thl" href="german.html">Deutsche Beschreibung</a><br>
</p>
<hr noshade width="60%">
</td>
<td width="1%"><img src="gif/dot.gif" width="40" height="1" alt=""></td>
<td width="99%">
<table width="100%" cellspacing="0" cellpadding="0" border="0">
<tr><td width="99%">
<font class="head">Quick Tutorial</font>
</td>
<td align="right" valign="bottom" width="116" rowspan="2">
<a href="index.html">
<img src="gif/bvi_s.gif" alt="BVI" width="116"
height="62" border="0"></a>
</td></tr>
<tr><td valign="bottom">
<hr noshade>
</td></tr></table>
<p>
This tutorial will explain all commands which behaves different to
vi. Note that, if you are on a Linux system, you will probably
have an 'improved' version of vi. Bvi is more similar to the standard
version.
<H3>The Screen</H3>
<CENTER>
<TABLE WIDTH=10 CELLSPACING=0 CELLPADDING=0 BORDER=0>
<TR><TD BGCOLOR=#ffccff><PRE CLASS="examp">
000000
00000C
000018
000024
000030
00003C
000048
000054
000060
00006C
000078
000084
000090
00009C</PRE></TD><TD BGCOLOR=#ccffcc><PRE CLASS="examp">
7F <tt class="inv">4</tt>5 4C 46 01 01
00 00 00 00 01 00
00 00 00 00 00 00
00 00 00 00 34 00
0C 00 09 00 00 00
00 00 00 00 55 89
53 C7 45 A4 00 00
00 00 00 83 7D 08
8C 02 00 00 E9 6F
00 00 00 00 6A 03
45 08 50 E8 FC FF
0C 85 D2 75 17 6A
E9 43 02 00 00 8D
0C 85 D2 75 0D C7</PRE></TD><TD BGCOLOR=#ccffcc><PRE CLASS="examp">
01 00 00 00 00 00
03 00 01 00 00 00
00 00 0C 07 00 00
00 00 00 00 28 00
00 00 00 00 00 00
E5 83 EC 68 57 56
00 00 C7 45 A0 01
00 75 13 6A 00 E8
02 00 00 8D B4 26
68 90 00 00 00 8B
FF FF 89 C2 83 C4
01 E8 60 02 00 00
74 26 00 8D BC 27
45 A0 00 00 00 00</PRE></TD><TD BGCOLOR=#FFCCCC><PRE CLASS="examp">
.ELF........
............
............
....4.....(.
............
....U....hWV
S.E......E..
....}..u.j..
.....o.....&
....j.h.....
E.P.........
...u.j..`...
.C....t&...'
...u..E.....</PRE></TD></TR>
<TR BGCOLOR=#FFFFCC><TD COLSPAN=2 CLASS="examp">"set.o" 3500 bytes</TD>
<TD COLSPAN=2 ALIGN=RIGHT CLASS="examp"><B>000001 \105 0x45 69 'E'</B></TD></TR>
</TABLE>
</CENTER>
<P>
The screen is divided into four areas, symbolized by four different
colors. The magenta area contents the addresses in hexadecimal
notation. The green area contents the values of the edited file in
hexadecimal notation. The red area contents the same bytes in ASCII
representation. The yellow status line displays on the left side the
current status messages and on the right site the current position
of the cursor and the value of the byte on this address in octal,
hexadecimal, decimal and ASCII notation.
<BR>
You can toggle between the Hex and ASCII value of the same byte by
pressing the <FONT COLOR=#AAAAAA><B>TAB</B></FONT> key both in command
and input mode.
<H3>Command Line Options</H3>
There are some additional command line options in <B>bvi</B>:<BR>
<BLOCKQUOTE>
<B><TT>-f <I>script</I></TT></B>
</BLOCKQUOTE>
This command provides a means for collecting a series of <I>ex</I>
(colon) commands into a script file, then using this file to edit
other files. Since there is no binary stream editor <I>bsed</I>, you
can use this option to make several global changes in a binary file.
You can do this of course with the <i>source</I> command (<B>:so file</B>)
from within bvi too.
<BLOCKQUOTE>
<B><TT>-b <I>begin</I></TT></B>
</BLOCKQUOTE>
This option causes bvi to load a file not from start but from address
<I>begin</I>.
<BLOCKQUOTE>
<B><TT>-e <I>end</I></TT></B>
</BLOCKQUOTE>
This option causes bvi to load a file not till end but till address
<I>end</I>.
<BLOCKQUOTE>
<B><TT>-s <I>size</I></TT></B>
</BLOCKQUOTE>
This option causes bvi not to load the complete file but only <I>size</I>
bytes. This option can also be used to read a file reported with a
length 0 like some files in the Linux <TT CLASS="examp">/proc</TT>
directory.
<P>
<I>begin, end</I> or <I>size</I> can be an integer value (decimal or
hexadecimal) or an integer value with an appended <B>k</B> (for
multiply by 1024) or <B>m</B> (for multiply by 1.048.576).
<P>
You should use at most two of the three address options to avoid ambiguity!
<H3>Not Implemented Commands</H3>
<P>
<UL>
<LI><B><TT>:map</TT></B> and <B><TT>:unmap</TT></B> (Macros)
<LI><B><TT>:abbreviate</TT></B> (<B><TT>:ab</TT></B>) and <B><TT>:una</TT></B>
<LI>no named buffers.
</UL>
<p><font size="-1">
<a class="btop" href="#top">
<img border="0" width="16" height="7" src="gif/up.gif"
alt="Back to the top">Back to the top</a>
</font>
<hr noshade>
<i>Last update: October 19<sup>th</sup> 2000 by Gerhard B&uuml;rgmann,
<a class="btop" href="http://www.purkersdorf-online.at/">Purkersdorf</a>/Austria</i>
</td></tr></table>
</body></html>
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