cmd command tips and tricks for Linux systems

In the Linux system, the command line is a very powerful and flexible tool that can help users complete various operations efficiently. Mastering some common command techniques and tips can make users more proficient in using the command line to manage files, perform tasks, etc. The following will introduce some cmd command tips and tricks suitable for Linux systems, hoping to help everyone make better use of command line tools.

1. List files and subdirectories in the directory
   Use the ls command to list all files and subdirectories in the current directory. If you want to display more information, you can add the parameter -l, such as ls -l, to display detailed information such as file permissions, owner, file size, etc.

ls
ls -l

2. Switch directory
   Use the cd command to switch directories, for example cd Documents can enter the Documents directory. At the same time, if you want to return to the previous directory, you can use the cd .. command.

cd Documents
cd ..

3. Copy and move files
   Use the cp command to copy files, for example cp file1.txt file2.txtYou can copy file1 .txt is copied to file2.txt. Use the mv command to move files, for example mv file1.txt Documents can move file1.txt to the Documents directory.

cp file1.txt file2.txt
mv file1.txt Documents

4. Find files
   Use the find command to find files in the specified directory, for example find /home/user -name "*.txt "You can find all files with the suffix .txt in the /home/user directory.

find /home/user -name "*.txt"

5. View file content
   Use the cat command to view the file content, for example cat file.txtYou can view file.txt content. If the file is too long, you can use the less command to view it in pages, such as less file.txt.

cat file.txt
less file.txt

6. Compress and decompress files
   Use the tar command to compress and decompress files, such as tar -czvf archive.tar.gz filesYou can compress the files folder into archive.tar.gz. Use tar -xzvf archive.tar.gz to decompress this compressed package.

tar -czvf archive.tar.gz files
tar -xzvf archive.tar.gz

7. View command history
   Use the history command to view the history of previously executed commands. You can use !n To execute the nth command, you can also use Ctrl R to search for historical commands.

history
!n
Ctrl+R

Summary: The command line tool of the Linux system is a powerful tool. Proficient in some common command techniques and tips can allow users to manage files, perform tasks, etc. more efficiently. I hope that the cmd command tips and tricks introduced above for Linux systems can help you make better use of command line tools and improve work efficiency.

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