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发信人: corpus (corpora), 信区: Unix
标 题: vi-faq2(fwd)
日 期: Sun Sep 8 16:50:55 1996
4.0 - What's online at the vi archives?
There is a FAQ posted frequently which gives a list of all the files
that are online at the vi archive. It also gives a list of addresses
which mirror the vi archive. The main address is alf.uib.no, but it is
archived at many, many sites. The vi-archive faq lists all of them.
Please check that faq before ftping to it, as there is almost defiantly
a closer and therefore faster site to you that the one in Norway.
A mirror site is available at: cs.uwp.edu /pub/vi, and another at
monu6.cc.monash.edu.au /pub/Vi.
The site has many, many files on vi, including a few clones. It also
has the UCB distribution of vi, and lots of useful macros. Check it
out.
5.0 - Silly vi tricks, and silly macros
This section is for silly vi tricks, and silly macros. Actually, any
interesting vi tricks and macros are acceptable, as long as they are
not too lengthy. I will add any that are suggested to me that I think
are reasonable.
5.1 - Silly vi tricks
xp This will delete the character under the cursor, and put it
afterwards. In other words, it swaps the location of two characters.
ddp Similar to xp, but swapping lines.
uu Undo and redo last change. (This will take you to the last
modification to the file without changing anything.)
5.2 - Silly macros
Swap character and one vertically above:
map * kxjphxkP
Fold a line that's too long
map g $80|F r
Change case on most words
map v ywmno:s/./\~/g
Put `and' around the current word
map *` i`'
Put 'and' around the current word
map *' i''
Put "and" around the current word
map *" i""
Put `and' around the current word
map! `` `'
Split a line at the cursor, and put a > at the beginning of
the next line. (For quoting Usenet, etc). If word wrapping is
enabled, it might wrap the last word on the first line.
map g may0O`ay$:s/./ /g
Insert one character
map g i$^[r
6.0 - Alphabetical vi quick reference
... means that something needs to be specified before or after the
command, as appropriate. This is normally a cursor movement
keys (h,j,k,l,w,b, etc.) or a line number.
# (where # is a number) following command n times...
: go to ex-mode
) next sentence
( previous sentence
} next paragraph
{ previous paragraph
]] next section
[[ previous section
0 beginning of line
$ end of line
^ first non-whitespace character
+ first character of next line
- first character of previous line
(spacebar) next character
(return) next line
/ search forward
? search backward
% find match of current parenthesis, brace, or bracket
, reverse direction of last f, F, t, or T
; repeat last f, F, t, or T
. repeat last command
` goto mark
' goto beginning of line with mark
`` return to previous mark or location before a search
'' go to start of line of previous mark or location before search
~ switch case of current character
" store in register
!! repeat last shell command
! send next to command, replace output (eg !}fmt passes the current
paragraph to the command fmt, and replaces the output with
whatever fmt returns.)
>> shift paragraph one shiftwidth to the right
<< shift paragraph one shiftwidth to the left
>% shift until matching (, [, or { to the right
<% shift until matching (, [, or { to the left
a append after the current location
A append at the end of the line
^a unused
b beginning of previous word
B beginning of previous word, ignore punctuation
^b scroll back one screen
c change until...
C change to end of line
^c ends insert mode, unused in command mode
d delete until...
D delete to end of line
^d scroll down half a window, moves to previous shiftwidth in insert
mode
e end of word
E end of word, ignore punctuation
^e scroll screen down one line
f find...
F find backward...
^f scroll forward one screen
g unused
G ...Goto [defaults to end of file]
^g show status line
h left
H first line on screen
^h backspace in insert mode, left in command mode
i insert before current location
I insert before first non-whitespace character on line
^i tab in insert, unused in command
j down
J join next line with current line
^j down in command, create newline in insert
k up
K unused
^k unused
l right
L last line on screen
^l redraw screen
m mark position into register
M middle of screen
^m carriage return
n repeat last search
N repeat last search, reverse direction
^n down in command
o open line below current
O open line above current
^o unused
p put below current line
P put above current line
^p up in command
q unused
Q quit and run ex
^q unused
r replace current character
R replace characters until insert mode is left
^r redraw screen in command mode
s substitute
S substitute entire line
^s unused
t to...
T backward to...
^t moves to next shiftwidth.
u undo last change
U undo changes to current line
^u scroll up half a window
v unused
V unused
^v unused
w beginning of next word
W beginning of next word, ignore punctuation
^w unused in command, in insert move back to beginning of previous
word
x delete current character
X delete previous character
^x unused
y yank...
Y yank current line
^y scroll screen up one line
z reposition screen around line (Return to top of screen, . to
middle, - to bottom)
ZZ write and quit
^z unused
6.1 - Command mode input options ( : commands)
(Note: this is not a canonical list, just some of the more important
ones.)
:r <file> read <file> into current text
:r !<command> read output from command <command> into current text
:nr <file> read in at line number
:!<file> run command, return
:sh goto shell
:so <file> read and execute commands from <file>
:x write and quit
:wq write and quit
:l1,l2w <file> write between lines l1 and l2 to <file>. If <file>
is not specified, assume current. If l1,l2 not
specified, assume entire file (making it :w)
:w >> <file> append to <file>. May use line numbers
:w! overwrite current file
:q quit
:q! quit, forget changes
:e <file> edit <file> without leaving vi
:e! forget changes since last write
:n edit next file
:e +n <file> edit <file> at line n, if no end, assume end of file
:n <files> specify <files> as new list of files to edit
:e# edit alternate file (if :e <file> is used, alternate is
the original file)
:args show files to be edited
:rew rewind life of files to top
:map m n create a macro (make m do n)
:map! m n create an insert mode macro (make m do n)
:unmap m destroy macro m
:unmap! m destroy insert mode macro m
:ab <1> <2> abbreviate - replace <1> with <2> whenever typed as
a word
:unab <1> unabbreviate <1>
:set <option> set <option>...
6.2 - set options
The abbreviations in parenthesis may be used. Syntax:
:set <option> <param> (If <param> is expected)
Multiple options may be specified on one line.
:set <option>? displays the value of the <option>
:set all displays the value of all the options.
For options without a value, set no<option> turns it off.
Option: Default: What it does:
autoindent (ai) noai Makes new lines automatically
indent to the position as the
line above or below
autoprint (ap) ap Display changes after each
command
autowrite (aw) noaw Automatically save file
before :n, :!
beautify (bf) nobf Ignore all control characters
during input (except tab,
newline, formfeed)
directory= (dir=) /tmp Name of the directory to store
buffer
edcompatible noedcompatible Use ed-like features on
substitute
errorbells (eb) errorbells Sound bell on error
exrc (ex) noexrc Allow .exrc files outside home
dir
hardtabs= (ht=) 8 Set boundary for hardware tabs
ignore case (ic) noic Ignore case in regex expressions
lisp nolisp Turn on lisp mode
list nolist Display all tabs, end of lines
magic magic Enable more regex expressions
mesg mesg Allows mesgs to be sent to
terminal
number (nu) nonumber Displays line numbers in file
open open Allows open and visual
optimize (opt) optimize Optimizes throughput of text by
not sending carriage returns
when printing text
paragraphs= (para=) IPLPPPQPPLIbp Sets the delimiters for { & }
prompt prompt Command mode input gives : prompt
readonly (ro) noro Cannot write unless ! is given
redraw noredraw Redraw screen when edits are made
remap remap Allows macros that point to other
macros
report= 5 Report changes if they effect > x
lines
scroll 1/2 window Amount of screen to scroll when
scroll down is received in
command mode. Also, number of
lines printer by z. (z prints
2*scroll)
sections= SHNHH HU Defines end of section for [[
and ]]
shell= (sh=) /bin/sh Default shell. Uses SHELL
environment, if set
shiftwidth= (sw=) 8 Characters to shift when using
shift commands
showmatch (sm) nosm Show matching {, }, (, ), [, or ]
showmode noshowmode Shows which mode you are in.
slowopen (slow) Do not update display
immediately after insert
tabstop= (ts=) 8 Sets tabstop length
taglength= (tl=) 0 Number of characters significant
for tags (0 means all
characters)
tags= tag, /usr/lib/tags Define pathname of files
containing tags.
term= Set the terminal type
terse noterse Display shorter error messages
timeout (to) timeout Keyboard maps timeout after one
second
ttytype= Set the terminal type
warn warn Display "No write since last
change" messages
window= (w=) Number of lines in window in visual
mode
wrapmargin= (wm=) 0 Set the right margin. Greater
than 0 will word wrap n spaces
from the edge of the screen
wrapscan (ws) ws Searches wrap around end of file
writeany (wa) nowa Allow saving to any file
7.0 - Setting up .exrc file
Any commands that can be used in command input mode ( : commands),
may be used in a .exrc, which will load automatically whenever you
start vi. In addition, the source command (so), abbreviations (ab),
and macros may be used. There may not be any blank lines in your
.exrc. A " in the first column may be used to tell vi that what
follows is a comment.
7.1 - Sample .exrc file
This .exrc file is a real one. Mine. Because of that, it doesn't
set as many options as one might wish it did to get a good idea of what
may be used. However, it should get the basic idea down, and it is
quite straightforward.
First, note that you do not need to specify the :, it is assumed.
" set wordwrap 9 characters from the right
set wm=9
" show matching parenthesis. When },), or ] is hit, show the opening
" {,(, or [ that matches it.
set sm
" set the shell to be /usr/local/bin/tcsh
set sh=/usr/local/bin/tcsh
" a few abbreviations
" this makes -l automatically become -Larry, and zidlle to be my
" name and email address.
ab zidlle E. Larry Lidz - ellidz@midway.uchicago.edu
ab -l -Larry
" uppercase V will run ispell -x (-x tells it not to save backups) on current
" file
map V :w
" K will center the line... (this doesn't work on SunOS -- ??)
map K :s/^[ ]*//
" v will reformat the current paragraph
map v {0!}fmt
" q runs a program to lock my terminal
map q :!lock2
" Splits a line in two at current cursor location, puts a > at the
"beginning of the line - useful for Usenet/email
map g may0O`ay$:s/./ /g
8.0 - Bugs in vi
I'd like to say that vi is bug free, but unfortunatly, it's not.
These bugs are bugs in the original vi, not necessarily in any of the
different clones.
Macros for _ do not always work properly.
9.0 - Glossary of terms
This glossary will be updated as people suggest terms that they do
not understand. Please let me know if you have any suggestions.
command mode
Command mode is the mode within vi where the user gives commands to
vi. (Including cursor movement commands, editing commands, etc.)
ed
A non-visual editor under unix.
<Esc>
The escape key. A key on a keyboard normally marked by escape.
Sometimes ^[ will work in its place. If there is no escape key,
sometimes the Meta key will work.
ex
An editor under unix, all commands preceded with : are passed to
it.
insert mode
Insert mode is the mode within vi where text is inserted into the
document.
macro
A macro is a shortcut key combination. For example, a macro allows
one to hit one letter and have it execute a few different commands.
open mode
Open mode is the mode that vi will start in if it cannot determine
your terminal type, or if it believes you have a hardware or glass-tube
terminal.
regular expressions (RegEx)
Regular expressions, commonly known as "RegEx" are a set of key
combinations that are meant to allow people to have a large variety of
control over what they are searching for. RegEx is used a lot under
Unix, and is common between many programs.
sed
Stream-line editor. An editor that has no interface. All commands
are given from the command line.
vi
The editor to which this FAQ is dedicated.
10.0 - Bibliography of Books that cover vi
The ULTIMATE GUIDE to the VI and EX Text Editors
Hewlett Packard Company (authors)
The Benjamin/Cummings Publishing Company, Inc.
ISBN 0-8053-4460-8
A PRACTICAL GUIDE TO THE UNIX SYSTEM
Mark G. Sobell
Benjamin Cummings Publisher
LEARNING THE VI EDITOR
Linda Lamb
O'Reilly & Associates
ISBN 0-937175-67-6
Please make suggestions as to what books are most useful for learning
vi. I will add books to this section as people suggest them to me.
(C)opyright, E. Larry Lidz, 1994, 1995. All Rights Reserved.
.
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