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This article introduces the knowledge of "linux commands commonly used in back-end development". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. Find a file

Find /-name filename.txt

Look for the "filename.txt" file in the "/" directory by name.

two。 Check whether a program is running

Ps-ef | grep tomcatps-ef | grep java

View all processes related to tomcat/java

3. Terminating thread

Kill-9 19979

Terminate a thread with thread number 19979, where 19979 can be used to view the process number with ps-ef | grep java and so on.

4. View files, including hidden files

Ls-al

5. Current working directory

Pwd

6. Copy a folder including its child files to a custom directory

Cp-r sourceFolder targetFolder

7. Create a directory

Mkdir newfolder

8. Delete directory (this directory is empty)

Rmdir deleteEmptyFolder

9. Delete a folder including its child files

Rm-rf deleteFile

10. Move Fil

Mv / temp/movefile / targetFolder

Extend rename mv oldNameFile newNameFile

11. Switch users

Su-username

twelve。 Modify file permissions

Chmod 777 file.java

Permissions for file.java-rwxrwxrwx,r for read, w for write, x for executable

777 is-111111111

13. Compressed file

Tar-czf test.tar.gz / test1 / test2

14. List the compressed files

Tar-tzf test.tar.gz

15. Extract the file

Tar-xvzf test.tar.gz

16. View the first 10 lines of the file

Head-n 10 example.txt

17. View the last 10 lines of the file

Tail-n 10 example.txt

18. View log files

Tail-f exmaple.log

19. Start the Vi editor

Vi

20. View the system's current time

Datedata + "% Y-%m-%d"

21. Extract the zip file

Unzip-oq

twenty-two。 Check the number of threads (easy to see if the program is wrong)

Ps-Lf port number | wc-l "linux commands commonly used in back-end development". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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