Starting vi
To start vi at the prompt enter:
[root@ts3 ~]#vi filename
If the file does not exist vi will create it for you.
Command Mode and Input Mode
When you first open a file with vi it takes you to command mode. To get to input mode type "i" :
i
To return to command mode press the ESC key:
[Esc]
Deleting Text
To delete text using the following commands you have to be in command mode:
Command | Function |
x | Delete the character that the cursor is on |
[Shift] d | Delete from the cursor to the end of the line. |
db |
Delete from the cursor to the beginning of the current word |
de | Delete from the cursor to the end of the current word |
dd | Delete the current line that the cursor is on |
d [Shift] g | Delete the current line that the cursor is on to the bottom of the file |
Undo
To undo changes or line deletions you have to be in command mode and type the following:
u
Goto
to go to a particular line a file go to command mode and type :linenumber :
:14
You can also type in the line number followed by:
[Shift] g
To see what line you are on:
[Ctrl] [Shift] g
To display all the line numbers:
:set number
To go to a particular line in a file while opening a file with vi:
[root@ts3 ~]#vi +45 filename
To go to a particular pattern in a file while opening a file with vi:
[root@ts3 ~]#vi +/pattern filename
Search
To search forward for some text, use the / (forward slash) command:
/pattern
To look for the next occurrence of that pattern:
n
To look for the previous occurence of that pattern:
[Shift] n
To find and replace that pattern:
Saving Work
To save changes go to command mode and type:
:w
To save a file with a different filename:
:w filename
To save and exit:
:wq
To exit without saving:
:q!
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