It's worth accumulating bit by bit
Files and Directories
cd /home into the '/home' directory'
cd .. go back to the previous directory
cd ../.. go back two levels up
cd into the personal home directory
cd ~user1 into the personal home directory
cd - return to the last directory
pwd show working path
ls to view files in a directory
mkdir dir1 creates a directory called 'dir1''
mkdir dir1 dir2 creates two directories at the same time
mkdir -p /tmp/dir1/dir2 creates a directory tree
rm -f file1 delete a file called 'file1''
rmdir dir1 removes a directory called 'dir1' '
rm -rf dir1 removes a directory called 'dir1' and also removes its contents
rm -rf dir1 dir2 deletes both directories and their contents at the same time
mv dir1 new_dir rename/move a directory
cp file1 file2 copy a file
cp dir/* . Copy all files in a directory to the current working directory
cp -a /tmp/dir1 . Copy a directory to the current working directory
cp -a dir1 dir2 copy a directory (-a is a copy of the original log including attributes)
cp -r dir1 dir2 Copy a directory (-r attributes such as modification time may change after copying)
file search
find / -name file1 start from '/' into the root file system to search for files and directories
find / -user user1 Search for files and directories belonging to user 'user1'
find /home/user1 -name \*.bin Search for files ending with '.bin' in directory '/home/user1'
File operation vi/vim
file mode:
general mode
Switch to edit mode: enter i
edit mode
Switch to normal mode: type esc
Switch to command mode: enter -shift+:
command mode
Switch to normal mode: type esc
[/word] Search for the character string with the content of word in the file (search down)
[?word] Search for the character string with the content of word in the file (search up)
[[n]] Indicates the repeated search action, that is, the search for the next A
[[N]] Reverse search for the next
【dd】 Delete the entire line where the cursor is located
【ndd】 Delete the downward n lines where the cursor is located
[yy] Copy the line where the cursor is located
[nyy] Copy the line down n where the cursor is located
[p,P] p means to paste the copied data on the next line of the cursor; P means to paste the copied data on the previous line of the cursor
【u】 Undo the previous operation
【:w】Save the file【:w!】If the file is read-only, force the file to be saved
【:q】Exit vi
【:q!】Forcibly leave vi without saving
【:wq】Save and leave
【:wq!】Forcibly save After leaving
[:! command] Leave vi temporarily and go to the command line to display the result after executing a command
[:set nu] Display the line number
[:set nonu] Cancel the display of the line number
【v,V】 v:将光标经过的地方反白选择；V：将光标经过的行反白选择
【[Ctrl] + v】 块选择，可用长方形的方式选择文本
【y】 将反白的地方复制到剪贴板
【d】 将反白的内容删除