Vim

Useful commands.

spell check

Enable spell check. Suggestions. Move between words. Stop spell check.

:set spell spelllang=en,sv
z=
]s and [s
:set nospell

Switch to last file

:e#

vim shortcuts

Shortcut      Description                                               
ESC           Switch to command mode.                                   
i             Insert before cursor.                                     
a             Insert after cursor.                                      
I             Insert at the beginning of line.                          
A             Insert at the end of line.                                
C             Change text to the end of line (equivalent to c$).        
cc or S       Change current line (equivalent to 0c$).                  
s             Delete a single character under the cursor and enter input
r             Replaces a single character under the cursor (without leaving command mode).                                    
R             Replaces characters under cursor.                         
v             Edit (and execute) the current command in the text editor.
h             Move one character right.                                 
l             Move one character left.                                  
w             Move one word or token right.                             
b             Move one word or token left.                              
W             Move one non-blank word right.                            
B             Move one non-blank word left.                             
e             Move to the end of the current word.                      
E             Move to the end of the current non-blank word.            
0             Move to the beginning of line                             
^             Move to the first non-blank character of line.            
$             Move to the end of line.                                  
%             Move to the corresponding opening/closing bracket.        
fc            Move right to the next occurance of char c.               
Fc            Move left to the previous occurance of c.                 
tc            Move right to the next occurance of c, then one char backward.                                                 
Tc            Move left to the previous occurance of c, then one char forward.                                                  
;             Redo the last character finding command.                  
,             Redo the last character finding command in opposite direction.                                                
|             Move to the n-th column (you may specify the argument n by typing it on number keys, for example, 20|)               
x             Delete a single character under the cursor.               
X             Delete a character before the cursor.                     
d<mov. comm>  Delete text of a movement command <mov. comm> (see above).
D             Delete to the end of the line (equivalent to d$).         
dd            Delete current line (equivalent to 0d$).                  
CTRL-w        Delete the previous word.                                 
CTRL-u        Delete from the cursor to the beginning of line.          
u             Undo previous text modification.                          
U             Undo all previous text modifications.                     
.             Redo the last text modification.                          
y<mov. comm>  Yank a movement into buffer (copy).                       
yy            Yank the whole line.                                      
p             Insert the yanked text at the cursor.                     
P             Insert the yanked text before the cursor.                 
k             Insert the yanked text before the cursor.                 
j             Insert the yanked text before the cursor.                 
G             Insert the yanked text before the cursor.                 
/string or    Search history backward for a command matching string.    
CTRL-r                                                                  
?string or    Search history forward for a command matching string.     
CTRL-s        (Note that on most machines Ctrl-s STOPS the terminal     
              output, change it with `stty' (Ctrl-q to resume)).        
n             Repeat search in the same direction as previous.          
N             Repeat search in the opposite direction as previous.      
TAB or = or   List all possible completions.                            
CTRL-i                                                                  
*             Insert all possible completions.                          
~            | Invert case of the character under cursor and move a character right.

yank buffers

Copy data to different buffers.

vi /etc/{passwd,group,shadow} /tmp/newfile
"a2yy       # Yank two lines to yank buffer a.
:n          # Go to next file.
"b2yy
:n
#c2yy
:n
"ap         # paste yank buffer a. 
"bp
"cp

Delete lines and add to a buffer.

vi /tmp/tmp1 /tmp/tmp2
"add         # Delete some lines and add to buffer a.
"Add        # Go to next lines and add lines to buffer a.
:wn
"ap         # Paste buffer.

Deleted lines atomically get numbered buffers.

"2p         # Get back the deletion you did before this one.

filter

Sort part of file.

:96,99!sort # will pass lines 96 through 99 through the sort filter and replace those lines with the output of sort.

run command

:!date

Add output of command

:r !date

Do something on startup

edit file start cursor at first occurance of pts/4

vim /tmp/forest -c "/pts\/4"

save file as root

:w !sudo tee %

search and replace

:%s/foo/bar/gc

indent lines

mark lines with V

> To indent lines

If you want to indent by two spaces.

:set shiftwidth=2

vim diff

vim -d passwd1 passwd2

vim with many windows

New window

CTRL + w

move between windows.

CTRL + w + -> or <- ...

open two files side by side

vim -O /file1 /file2