- Operating system shortcuts
1) using the arrow keys ↑ ↓ --- fast retrieval of historical command (command input will be temporarily stored in memory -> Save the file to disk)
2) move the cursor quickly
ctrl + a --- Move the cursor fast move to the beginning of the line
ctrl + e --- quickly move the cursor to the end of the line
ctrl + ← → --- the cursor left move as fast word
3) fast operation command information
ctrl + u --- the content before the cursor cut
ctrl + k --- contents after the cursor shear
ctrl + w --- shear each separated by a space character string information as
ctrl + y --- paste the contents of the cut
4) special function shortcut
ctrl + c (cancel) --- interrupt or cancel the command execution process
ctrl + l (clear) --- clear screen operation
ctrl + s --- into the locked state
ctrl + q --- exit the locked state -
Use editing commands VI / Vim
. 1) Edit Mode command information
command mode: special functions in the operation
edit mode: editing the file contents information
line mode: special command can enter information wq q wq q!!Command mode -i-> Edit mode -esc-> Command Mode
Command Mode -: -> line mode -esc-> command mode2) Command mode ---> Edit Mode
I --- at the cursor location directly into the editing mode
I --- move the cursor to the beginning of the line to enter the edit mode
A --- a character enters edit mode at the cursor position
A --- end of the line the cursor is switched to enter the edit mode
O --- inserted below the cursor line a new line, and enter the edit mode
O --- insert a new row in the row above the cursor, and enter the edit mode
s --- delete the character at the cursor position and enter edit mode
S --- delete the cursor line and enter edit mode oh3) Command Mode ---> bottom line mode
: --- entering in the end-line mode, complete functional operation q WQ WQ WQ!!
/ --- Search File information n N look up look down
--- Search File information? n look up N lookup down
PS: ignore case lookup data file
/ Oldboy \ C
. 4) how to quickly move the cursor (command mode)
G --- switch to the last line
GG --- a first switch to a file line
100G --- switch to the file specified line
100gg
^ --- switch to the beginning of a line
$ --- switch to the end of a line5) how to do special editing operation
yy --- copy specified line information
nyy --- copy multiple lines of information
content p --- paste the copied at the specified line
content np --- copy of the specified line in that sticks times
dd --- delete the specified line information (in real terms is cut)
NDD --- delete the specified multi-line message (the essence is the shear)
dG --- all lines after deleting the contents of the cursor
C --- delete the contents after cursor enter the edit state and
R & lt replace the specified character information ---
R & lt plurality of character information for successive replacement ---
6) commands operation of the special function mode
U --- withdrawal operations Use the undo
Ctrl + R & lt canceled withdrawn redo ---Line mode special feature operation
: set nu --- display line numbers
: set nonu --- cancel the line number display
error 04: error message is displayed, not the normal editing
cause of the problem:
1) When you edit a file, a sudden interruption
2) file by multiple users to simultaneously edit theConduct problem solving:
problem: Solution
First course: recover data before the interruption information
vi -r edit file information
Second course: delete a hidden file
Description:. Linux file system to start is the hidden files
using the ls -a view hidden files
rm -f /oldboy/oldboy.txt.swp -
Editing commands Common Errors
Error 01: editing commands can only edit the file
Error 02: You must specify the file you want to edit
error 03: Edit the file directory must exist
Error 04: error message is displayed, not the normal editing
analyze cause of the problem:
1) Edit the file, there is a sudden interruption
2) file by multiple users to simultaneously edit theConduct problem solving:
problem: Solution
First course: recover data before the interruption information
vi -r edit file information
Second course: delete a hidden file
Description:. Linux file system to start is the hidden files
using the ls -a view hidden files
rm -f /oldboy/oldboy.txt.swpvi command execution principles
1) Edit the file will have a hidden file
2) is directly edit content in a hidden file
3) When you save the file is a hidden file rename operation
directory structure linux system / directory information
PS: the system all the data are file
boot --- hold a boot system boot file system similar to windows c: / windows
etc --- system services configuration file directory
opt / usr --- save the third software program users install directory files program
root --- system user's home directory super user's home (palace)
home --- system user's home directory ordinary user's home (slums)
var --- the system log file directory
tmp --- temporarily store data directory is similar to windows recycle bin
sbin --- binaries == binary command file Super
bin --- binaries == command file binary
dev --- ??????
mnt --- ??????
Media audio video store --- picture
SYS / proc --- ???
lib --- library adjusted sauces development code requires the use of the library you want to save the file directory 32 program library files
needed to lib64 --- library 64-bit program library files
directory level official data: HTTP: //www.p athname.com/fhs/pub/fhs-2.3.html - Course knowledge summary carding
1) command to get help information man command / --help help / builtin
2) operating system shortcuts
3) Edit command skills
4) editing commands common errors
5) operating system directory structure
liunx the vi editor shortcuts
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Origin blog.51cto.com/14623872/2455135
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