The following is to participate kun kun seniors Linux operating training base notes ~
First, to help the operator
(1) completion of both command
tab filled command
tab × 2 x retrieval command beginning
(2) help command
Check the man page for man ls
View info pages info ls
ls --help view help manual
Second, the simple directory structure
(1) the overall directory structure: (from rookie tutorial)
See FIG head of Mind ~ https://wangzhankun.github.io/2019/10/Linux directory structure .html
(2) represents a relative path used: .. parent directory
. Current directory
pwd View current directory
(3) an absolute path and relative path
Relative path ./a.txt
../file/a.txt
Absolute path / home / user / Downloads /
(4) file and directory operations command
ls displays the file name, property
cd Change directory
Modify touch
Create a directory mkdir
cp Copy
mv move
rm delete
cat and display a designated one or more information files
1 // action: once to display the entire file.
CAT filename $
// Role 2: Create a file from the keyboard.
CAT $> filename
** can only create a new file, you can not edit existing documents **
// Role 3: several files into one file.
$ cat file1 file2> file
(5) compressed
tar -zcvf myfile.tar.gz ~ / Pictures compressed and packaged
extracting tar -zxvf myfile.tar.gz
<The z to j, was .tar.bz2 format>
<To the specified directory: -C / home / joyce>
(6) Environment Variables
env display all environment variables
echo $ variable name display an environment variable
Variable name = variable value creation
unset variable variable names deleted
(7) process
View active processes top
ps print all processes
pstree printing process relationship
kill kill the process
Third, the switching interface to login
Ctrl + Alt + F3 away from the UI interface switches to monochrome interface
exit exit
Ctrl + Alt + F1 back to the UI
Four, vim underlying operating
(1) Edit Mode
i is stopped at the position where the cursor does not move to start writing the content (frequently-used)
I first began at the cursor trekking write to
After a start to write to the current cursor line character
A cursor at the end of the start writing the content trekking
o In the line where the cursor next line starts writing the content
O on the line where the cursor row to start writing content
(2) command mode
Press Esc to exit edit mode, enter: to enter command mode
: Wq save and exit
:! Wq forced to save and exit
: Q Force Quit!
: Set nu show line numbers