ctrl+u -------> undo in vim editor
:w filename -------> save as filename without exiting from vim
vim ctechz +25 -----> open file and go to line 54, any : command can be run using + on command line
vim -O ctechz1 ctechz2 -----> open ctechz1 and ctechz2 side by side
:ls -----> list buffers
:bd -----> delete buffer and any associated windows
Ctrl+g -----> Show file info including your position in the file
vi filename ----> Opening a file / Creating text
Edit modes: These keys enter editing modes and type in the text of your document.
i Insert before current cursor position
I Insert at beginning of current line
a Insert (append) after current cursor position
A Append to end of line
r Replace 1 character
R Replace mode
<ESC> Terminate insertion or overwrite mode
Deletion of text:
x Delete single character
dd Delete current line and put in buffer
ndd Delete n lines (n is a number) and put them in buffer
J Attaches the next line to the end of the current line (deletes carriage
return).
u Undo last command
Cut and Paste:
yy Yank current line into buffer
nyy Yank n lines into buffer
p Put the contents of the buffer after the current line
P Put the contents of the buffer before the current line
Cursor Positioning:
^d Page down
^u Page up
:n Position cursor at line n
:$ Position cursor at end of file
^g Display current line number
h,j,k,l Left,Down,Up, and Right respectivly. Your arrow keys should also work if
your keyboard mappings are anywhere near sane.
String Substitution:
:n1,n2:s/string1/string2/[g] Substitute string2 for string1 on lines
n1 to n2. If g is included (meaning global),
all instances of string1 on each line
are substituted. If g is not included,
only the first instance per matching line is
substituted.
^ matches start of line
. matches any single character
$ matches end of line
These and other "special characters" (like the forward slash) can be "escaped" with \ i.e to match the string "/usr/STRIM100/SOFT" say "\/usr\/STRIM100\/SOFT".
Saving and Quitting and other "ex" commands:
These commands are all prefixed by pressing colon (:) and then entered in the lower left corner of the window. They are called "ex" commands because they are commands of the ex text editor - the precursor line editor to the screen editor vi. You cannot enter an "ex" command when you are in an edit mode (typing text onto the screen)
Press <ESC> to exit from an editing mode.
:w Write the current file.
:w new.file Write the file to the name 'new.file'.
:w! existing.file Overwrite an existing file with the file currently being edited.
:wq Write the file and quit.
:q Quit.
:q! Quit with no changes.
:e filename Open the file 'filename' for editing.
:set number Turns on line numbering
:set nonumber Turns off line numbering
:w filename -------> save as filename without exiting from vim
vim ctechz +25 -----> open file and go to line 54, any : command can be run using + on command line
vim -O ctechz1 ctechz2 -----> open ctechz1 and ctechz2 side by side
:ls -----> list buffers
:bd -----> delete buffer and any associated windows
Ctrl+g -----> Show file info including your position in the file
vi filename ----> Opening a file / Creating text
Edit modes: These keys enter editing modes and type in the text of your document.
i Insert before current cursor position
I Insert at beginning of current line
a Insert (append) after current cursor position
A Append to end of line
r Replace 1 character
R Replace mode
<ESC> Terminate insertion or overwrite mode
Deletion of text:
x Delete single character
dd Delete current line and put in buffer
ndd Delete n lines (n is a number) and put them in buffer
J Attaches the next line to the end of the current line (deletes carriage
return).
Undo:
u Undo last command
Cut and Paste:
yy Yank current line into buffer
nyy Yank n lines into buffer
p Put the contents of the buffer after the current line
P Put the contents of the buffer before the current line
Cursor Positioning:
^d Page down
^u Page up
:n Position cursor at line n
:$ Position cursor at end of file
^g Display current line number
h,j,k,l Left,Down,Up, and Right respectivly. Your arrow keys should also work if
your keyboard mappings are anywhere near sane.
String Substitution:
:n1,n2:s/string1/string2/[g] Substitute string2 for string1 on lines
n1 to n2. If g is included (meaning global),
all instances of string1 on each line
are substituted. If g is not included,
only the first instance per matching line is
substituted.
^ matches start of line
. matches any single character
$ matches end of line
These and other "special characters" (like the forward slash) can be "escaped" with \ i.e to match the string "/usr/STRIM100/SOFT" say "\/usr\/STRIM100\/SOFT".
Saving and Quitting and other "ex" commands:
These commands are all prefixed by pressing colon (:) and then entered in the lower left corner of the window. They are called "ex" commands because they are commands of the ex text editor - the precursor line editor to the screen editor vi. You cannot enter an "ex" command when you are in an edit mode (typing text onto the screen)
Press <ESC> to exit from an editing mode.
:w Write the current file.
:w new.file Write the file to the name 'new.file'.
:w! existing.file Overwrite an existing file with the file currently being edited.
:wq Write the file and quit.
:q Quit.
:q! Quit with no changes.
:e filename Open the file 'filename' for editing.
:set number Turns on line numbering
:set nonumber Turns off line numbering
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