Vim: Difference between revisions

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This page was last edited on 15 July 2020, at 20:58.
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== Quick Overview ==
==Quick Overview==
=== Movement ===
===Movement===
Some movement keys
Some movement keys
{| class="wikitable"
{| class="wikitable"
! Key
!Key
! Description
!Description
|-
|-
| j  
|j
| down
|down
|-
|-
| k  
|k
| up
|up
|-
|-
| l
|l
| right
|right
|-
|-
|-
|-
| h  
|h
| left
|left
|-
|-
| w
|w
| go forward 1 word
|go forward 1 word
|-
|-
| W
|W
| go forward 1 word, ignoring symbols and punctuations
|go forward 1 word, ignoring symbols and punctuations
|-
|-
| b
|b
| go backward 1 word
|go backward 1 word
|-
|-
| B
|B
| go backward 1 word, ignoring symbols and punctuations
|go backward 1 word, ignoring symbols and punctuations
|-
|-
| f $char
|f $char
| Go to next instance of '$char'
|Go to next instance of '$char'
|-
|-
| ;
|;
| Repeat the previous f command
|Repeat the previous f command
|-
|-
| 0
|0
| Move to beginning of the line
|Move to beginning of the line
|-
|-
| ^
|^
| Move to first non-blank character of the line
|Move to first non-blank character of the line
|-
|-
| $
|$
| Move to end of the line
|Move to end of the line
|-
|-
| gg
|gg
| Move to top of file
|Move to top of file
|-
|-
| G
|G
| Move to end of the file
|Move to end of the file
|-
|-
| -
| -
| Go to start of previous line
|Go to start of previous line
|-
|-
| +
| +
| Go to start of next line
|Go to start of next line
|}
|}


=== Actions ===
===Actions===
{| class="wikitable"
{| class="wikitable"
! Key
!Key
! Description
!Description
|-
|-
| u
|u
| Undo
|Undo
|-
|-
| Ctrl+r
|Ctrl+r
| Redo
|Redo
|-
|-
| /
|/
| find
|find
|-
|-
| >>
|>>
| Indent by shiftwidth amount
|Indent by shiftwidth amount
|-
|-
| <<
|<<
| Un-indent by shiftwidth amount
|Un-indent by shiftwidth amount
|-
|-
| ~
|~
| Toggle selected character case
|Toggle selected character case
|-
|-
| .
|.
| Repeat last command
|Repeat last command
|-
|-
| x
|x
| Delete character
|Delete character
|-
|-
| d<movement>
|d<movement>
| Delete in the given movement. Eg. {{code|dw}} deletes a word.
|Delete in the given movement. Eg. {{code|dw}} deletes a word.
|-
|-
| dd
|dd
| Delete current line
|Delete current line
|-
|-
| D
|D
| Delete till the end of the line
|Delete till the end of the line
|-
|-
| p
|p
| Pastes what was last deleted
|Pastes what was last deleted
|}
|}


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Enter visual block mode with {{code|ctrl+v}} starting at the current cursor location. This mode is useful if you wish to change multiple lines at a particular column.
Enter visual block mode with {{code|ctrl+v}} starting at the current cursor location. This mode is useful if you wish to change multiple lines at a particular column.


=== Registers ===
===Registers===
Registers hold some value and are named {{code|a}} through {{code|z}}. You may use registers as a type of clipboard or temporary scratch space. Type {{code|:register}} to list all registers with values.
Registers hold some value and are named {{code|a}} through {{code|z}}. You may use registers as a type of clipboard or temporary scratch space. Type {{code|:register}} to list all registers with values.


{| class="wikitable"
{| class="wikitable"
! Key
!Key
! Description
!Description
|-
|-
| "<register>p
|"<register>p
| Paste whatever is in <register>
|Paste whatever is in <register>
|-
|-
| "xdd
|"xdd
| Put deleted line into register x
|Put deleted line into register x
|}
|}


Macros repeat a set of commands stored within a register.  
Macros repeat a set of commands stored within a register.  
{| class="wikitable"
{| class="wikitable"
! Key
!Key
! Description
!Description
|-
|-
| q<register>
|q<register>
| Begin recording macro into register. Eg. {{code|qq}} records into register q.
|Begin recording macro into register. Eg. {{code|qq}} records into register q.
|-
|-
| q
|q
| End the recording by pressing q again
|End the recording by pressing q again
|-
|-
| @<register>
|@<register>
| Repeat macro stored in register <register>. Eg. {{code|@q}} replays macro at q.
|Repeat macro stored in register <register>. Eg. {{code|@q}} replays macro at q.
|}
|}


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== Tips ==
==Tips==
=== Execute Current File using Preset Key ===
===Execute Current File using Preset Key===
To make vi execute a script that is being edited using a function key (in this case, F5), add the following to your {{code|.vimrc}}
To make vi execute a script that is being edited using a function key (in this case, F5), add the following to your {{code|.vimrc}}


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}}
}}


=== Toggle Line Numbers ===
===Toggle Line Numbers===
To make vi toggle line numbers using a key (in this case, F4), add the following to your {{code|.vimrc}}
To make vi toggle line numbers using a key (in this case, F4), add the following to your {{code|.vimrc}}
{{highlight|lang=vim|code=
{{highlight|lang=vim|code=
Line 169: Line 169:
}}
}}


=== Multi-line Edit ===
===Multi-line Edit===
Indent lines 1-33 with 2 spaces.
Indent lines 1-33 with 2 spaces.
{{highlight|lang=text|code=
{{highlight|lang=text|code=
Line 175: Line 175:
}}
}}


=== Vi Visual Bell Flash ===
===Vi Visual Bell Flash===
Out of the box {{code|vim}} flashes to the point where I feel like I'll get a seizure. To turn it off:
Out of the box {{code|vim}} flashes to the point where I feel like I'll get a seizure. To turn it off:
{{highlight|lang=text|code=
{{highlight|lang=text|code=
Line 181: Line 181:
}}
}}


=== Force Tabs ===
===Force Tabs===
Force tabs instead of soft tabs with tab stops and width set to 4.
Force tabs instead of soft tabs with tab stops and width set to 4.
{{highlight|lang=vim|code=
{{highlight|lang=vim|code=
Line 187: Line 187:
}}
}}


=== Force Soft Tabs ===
===Force Soft Tabs===
The reverse of the above:
The reverse of the above:
{{highlight|lang=vim|code=
{{highlight|lang=vim|code=
Line 193: Line 193:
}}
}}


=== Mouse Scroll Only ===
To enable mouse wheel scrolling but not mouse interactions:
{{Highlight
| code = " Enable mouse support
:set mouse=a
" Disable left mouse
:nmap <LeftMouse> <nop>
:imap <LeftMouse> <nop>
:vmap <LeftMouse> <nop>
" Disable double click
:nmap <2-LeftMouse> <nop>
| lang = vim
}}
== See also ==
* https://superuser.com/questions/495652/vim-enable-mouse-scroll-only-not-cursor-positioning


[[Category:TipsnTrics]]
[[Category:TipsnTrics]]
{{Navbox Linux}}[[Category:Linux]]
{{Navbox Linux}}
[[Category:Linux]]
[[Category:LinuxUtilities]]
[[Category:LinuxUtilities]]

Revision as of 20:58, 15 July 2020

Quick Overview

Movement

Some movement keys

Key Description
j down
k up
l right
h left
w go forward 1 word
W go forward 1 word, ignoring symbols and punctuations
b go backward 1 word
B go backward 1 word, ignoring symbols and punctuations
f $char Go to next instance of '$char'
; Repeat the previous f command
0 Move to beginning of the line
^ Move to first non-blank character of the line
$ Move to end of the line
gg Move to top of file
G Move to end of the file
- Go to start of previous line
+ Go to start of next line

Actions

Key Description
u Undo
Ctrl+r Redo
/ find
>> Indent by shiftwidth amount
<< Un-indent by shiftwidth amount
~ Toggle selected character case
. Repeat last command
x Delete character
d<movement> Delete in the given movement. Eg. dw deletes a word.
dd Delete current line
D Delete till the end of the line
p Pastes what was last deleted

You can repeat actions by specifying the number prior to the command. Eg. To delete 10 characters: 10x Eg. To delete 10 lines: 10dd

Enter visual line mode with shift+v starting at the current location. Use movement keys to change what is selected. Actions can then be done to the selected portion of the text.

Enter visual block mode with ctrl+v starting at the current cursor location. This mode is useful if you wish to change multiple lines at a particular column.

Registers

Registers hold some value and are named a through z. You may use registers as a type of clipboard or temporary scratch space. Type :register to list all registers with values.

Key Description
"<register>p Paste whatever is in <register>
"xdd Put deleted line into register x

Macros repeat a set of commands stored within a register.

Key Description
q<register> Begin recording macro into register. Eg. qq records into register q.
q End the recording by pressing q again
@<register> Repeat macro stored in register <register>. Eg. @q replays macro at q.



Tips

Execute Current File using Preset Key

To make vi execute a script that is being edited using a function key (in this case, F5), add the following to your .vimrc 

" Mapping F5 to run hashbang scripts
" Will save, then run the interpreter.
au BufEnter * if match( getline(1) , '^\#!') == 0

Toggle Line Numbers

To make vi toggle line numbers using a key (in this case, F4), add the following to your .vimrc 

" Map F4 to toggle line numbers
map <F4> :set nonumber!<CR>

Multi-line Edit

Indent lines 1-33 with 2 spaces. 

1,33s/^/  /g

Vi Visual Bell Flash

Out of the box vim flashes to the point where I feel like I'll get a seizure. To turn it off: 

:set noflash

Force Tabs

Force tabs instead of soft tabs with tab stops and width set to 4. 

:set autoindent noexpandtab tabstop=4 shiftwidth=4

Force Soft Tabs

The reverse of the above: 

:set tabstop=4 softtabstop=0 expandtab shiftwidth=4 smarttab

Mouse Scroll Only

To enable mouse wheel scrolling but not mouse interactions: 

" Enable mouse support
:set mouse=a

" Disable left mouse
:nmap <LeftMouse> <nop>
:imap <LeftMouse> <nop>
:vmap <LeftMouse> <nop>

" Disable double click
:nmap <2-LeftMouse> <nop>

See also

Various Linux Notes
Linux Tools and Utilites
Package Management
Linux Distributions
Networking
Containers