Operation and Maintenance
Linux Operation and Maintenance
What are the 20 most commonly used commands in Linux?
What are the 20 most commonly used commands in Linux?
Commonly used commands in Linux include search, copy, terminate threads, create directories, delete directories, move files, switch users, etc.
There are many commonly used commands in Linux It is necessary to master it. Knowing these commands can help us solve problems better and faster. Next, I will share with you the 20 most commonly used commands in the Linux system, which have certain reference value. I hope it will be helpful to everyone
[Recommended courses ：Linux tutorial】
##1. find Find a file or directory
find / -size 204800k //Find files larger than 200MB in the root directory2. Copy the file including its subfiles to a custom directory
cp -r sourceFolder targetFolder3. Check whether a program Run
ps –ef|grep tomcat //View all tomcat-related processes4. Terminate the thread
kill -9 19979 //Terminate the thread with thread number 199795. View files, including hidden files
#ls -al6. Current Working directory
pwd7. Create directory
mkdir newfolder8. Delete directory ( This directory is an empty directory)
rmdir deleteEmptyFolder9. Delete the file including its sub-files
rm -rf deleteFile
10. Move files
mv /temp/movefile /targetFolder//Extended rename mv oldNameFile newNameFile11. Switch users
su -username12. Modify file permissions
chmod 777 file.java //Permissions of file.java -rwxrwxrwx, r means read , w means write, x means executable13. Compressed file
tar -czf test.tar.gz /test1 /test214. List the compressed file list
tar -tzf test.tar.gz15. Unzip the file
tar - xvzf test.tar.gz16. View the first 10 lines of the file
head -n 10 example.txt17. View 10 lines at the end of the file
tail -n 10 example.txt18. View the log file
tail -f exmaple.log / /This command will automatically display the new content, and the screen will only display 10 lines of content (can be set).19. Start the Vi editor
vi20. View the current system time
date The command will output the day of the week, month, day, time and time display format and year Sat Feb 22 15:36:49 CST 2019date ”%Y-% m-%d" is displayed as follows: [root@ming xxx]# date "%Y-%m-%d" 2019-02-22 Summary: The above is the entire content of this film article, I hope it will be helpful to everyone.The above is the detailed content of What are the 20 most commonly used commands in Linux?. For more information, please follow other related articles on the PHP Chinese website!
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