Using an editor (vim / nano)

Vim editor

Vim operating mode

Insert command

command	effect
a	Inserted after the character under the cursor
A	Inserting the end of the cursor line
i	Be inserted before the character under the cursor
I	The first insert the cursor line
O	New line is inserted at the cursor
O	Insert a new row on the cursor

Positioning command

command	effect
: Not set	Set the line number
:set nonu	Cancel line number
gg	To the first row
G	To the last line
ng	To the n-th row
:n	To the n-th row

command	effect
$	End of the line to move
0	To start of line

Delete command

command	effect
x	To delete the character at the cursor location
nx	After you remove n characters at the cursor
dd	Delete cursor line, ndd Delete n lines
d$	Delete the current cursor position to the end of the line content
dG	Delete the contents of the row cursor to the end of the file
D	Delete at the cursor to the end of the line content
: N1, n2d	Delete the specified range of row

To pay attention to when using the backspace and delete keys in normal mode vim editor. vim editor will usually delete key function of the command identified as x, to delete the character at the current cursor position.

Copy and Cut

command	effect
yy	Copy the current line
nyy	Copy the following line n the current line
dd	Cut the current line
ndd	The current line n line hereinafter
p、P	Paste or row at the current cursor line

Replacement and cancellation

command	effect
r	Replace the character at the cursor location
R	To begin replacing characters from under the cursor, press Esc to end
in	Cancel the last action

Search Search and Replace command

command	effect
/string	Ignore case when searching for the specified search string: set ic
n	Search for the next occurrence of the specified string position
:%s/old/new/g	Replace text specified string
:%s/old/new/gc	Replaces the specified text string, but prompted at each occurrence,
:n1,n2s/old/new/g	Alternatively all old line number between n1 and n2

Save and Exit

command	effect
:w	Save changes
:w new_filename	Save for the specified file
:wq	Save changes and exit
:ZZ	Save changes and exit
:q!	Quit without saving changes
:wq!	Save the changes and exit the root available

Import command execution results

r !命令

Defined shortcuts

map shortcut keys trigger command
ctrl + v and ctrl + p is defined shortcuts ^ p (ctrl p)

Continuous line comments

:n1,n2s/^/#/g  (行首添加 #)
:n1,n2s/^/\/\//#/g

Profiles

/home/username/.vimrc
/root/.vimrc

nano editor

The caret (^) indicates whether the Ctrl key.

nano control commands:

command	description
Ctrl + C	And then displays the cursor position in the text editing buffer
Ctrl + G	The main display window nano's help
Ctrl + J	Adjust the current text of paragraphs
Ctrl + K	剪切文本行，并将其保存在剪切缓冲区
Ctrl + O	将当前文本编辑缓冲区的内容写入文件
Ctrl + R	将文件读入当前文本编辑缓冲区
Ctrl + T	启动可用的拼写检查器
Ctrl + U	将剪切缓冲区中的内容放入当前行
Ctrl + V	翻动文本编辑缓冲区中的下一页内容
Ctrl + W	在文本编辑缓冲区中搜索单词或短语
Ctrl + X	关闭当前文本编辑缓冲区，退出nano，返回shell
Ctrl + Y	翻动到文本编辑缓冲区中的上一页内容

emacs 编辑器

KWrite 编辑器

Kate 编辑器

GNOME 编辑器