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# VIM
## Text Entry Commands (Used to start text entry)
a Append text following current cursor position
A Append text to the end of current line
i Insert text before the current cursor position
I Insert text at the beginning of the cursor line
o Open up a new line following the current line and add text there
O Open up a new line in front of the current line and add text there
The following commands are used only in the commands mode.
Cursor Movement Commands
h Moves the cursor one character to the left
l Moves the cursor one character to the right
k Moves the cursor up one line
j Moves the cursor down one line
nG or :n Cursor goes to the specified (n) line
(ex. 10G goes to line 10)
^F (CTRl F) Forward screenful
^B Backward screenful
^f One page forward
^b One page backward
^U Up half screenful
^D Down half screenful
$ Move cursor to the end of current line
0 (zero) Move cursor to the beginning of current line
w Forward one word
b Backward one word
## Exit Commands
:wq Write file to disk and quit the editor
:q! Quit (no warning)
:q Quit (a warning is printed if a modified file has not been saved)
ZZ Save workspace and quit the editor (same as :wq)
: 10,25 w temp
write lines 10 through 25 into file named temp. Of course, other line
numbers can be used. (Use :f to find out the line numbers you want.
## Text Deletion Commands
x Delete character
dw Delete word from cursor on
db Delete word backward
dd Delete line
d$ Delete to end of line
d^ (d caret, not CTRL d) Delete to beginning of line
Yank (has most of the options of delete)-- VI's copy commmand
yy yank current line
y$ yank to end of current line from cursor
yw yank from cursor to end of current word
5yy yank, for example, 5 lines
## Paste (used after delete or yank to recover lines.)
p paste below cursor
P paste above cursor
"2p paste from buffer 2 (there are 9)
u Undo last change
U Restore line
J Join next line down to the end of the current line
## File Manipulation Commands
:w Write workspace to original file
:w file Write workspace to named file
:e file Start editing a new file
:r file Read contents of a file to the workspace
## Other Useful Commands
Most commands can be repeated n times by typing a number, n, before
the command. For example 10dd means delete 10 lines.
. Repeat last command
cw Change current word to a new word
r Replace one character at the cursor position
R Begin overstrike or replace mode – use ESC key to exit
:/ pattern Search forward for the pattern
:? pattern Search backward for the pattern
n (used after either of the 2 search commands above to
continue to find next occurrence of the pattern.
:g/pat1/s//pat2/g replace every occurrence of pattern1 (pat1) with
pat2
Example :g/tIO/s//Ada.Text_IO/g
This will find and replace tIO by Ada.text_IO everywhere in the file.
:g/a/s// /g replace the letter a, by blank
:g/a/s///g replace a by nothing
note: Even this command be undone by u
## Examples
Opening a New File
Step 1 type vim filename (create a file named filename)
Step 2 type i ( switch to insert mode)
Step 3 enter text (enter your Ada program)
Step 4 hit Esc key (switch back to command mode)
Step 5 type :wq (write file and exit vim)
## Editing the Existing File
Step 1 type vim filename (edit the existing file named filename)
Step 2 move around the file using h/j/k/l key or any appropriate command
h Moves the cursor one character to the left
l Moves the cursor one character to the right
k Moves the cursor up one line
j Moves the cursor down one line
nG or :n Cursor goes to the specified (n) line
(ex. 10G goes to line 10)
Step 3 edit required text (replace or delete or insert)
Step 4 hit Esc key (exit from insert mode if you insert or replace text)
Step 5 type :wq
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