Linux Beginners should master 50 basic commands-general Linux technology-Linux technology and application information. The following is a detailed description. Author: Chao Hua Xi
Parameters and tips: Click man to close your eyes.
1. ls-a lists all files in the current directory, including hidden files with a. header (for example ~ /. Bashrc)
Ls? L list the details of files in the current directory
2. pwd: view the absolute path of the current directory
3. Move between cd Directories
4. Create a directory with the mkdir directory name
5. delete an object with the rm file name
6. view the content of the cat file name (full screen view)
7. view the file content by file name more (move left and right)
8. view the file content using the less file name (move up, down, and left/right)
9. The mv path file name moves the file to the path
Renamed the mv file name
10. The grep character file name can be used to view part of the file content based on character matching.
11. find the path-name "string" to find the files and directories that match the string.
12. ln Source File Link name creates a hard link to the source file
Ln-s source File Link name creates a soft link to the source file
13. Create a file with the touch file name
14. df shows the total capacity, usage, and remaining amount of the file system.
15. view the current/home directory capacity (k) and subdirectory capacity (k) in du-B/HOME)
16. fdisk-l view system partition information
17. mount-t file system type device path access path
18. chmod *** permission for executing write and read operations on file name Modification
19. Comparison of diff file names and file names
20. top dynamic ps? Aux static pstree process tree Viewing System Processes
21. program name & background running program
Fg transfers the processes running in the background back to the foreground
Bg transfers the foreground running process to the background
22. halt init 0 shutdown? H now shut down the system
23. reboot init 6 restart the system
24. init [0123456] changed the system running level, 7 types
25. at 5 pm + 3 days/bin/ls specify to execute/bin/ls at pm three days later
26. crontab periodic Task Command (details are recommended)
27. date display date command
28. cal command for displaying calendar
29. A good simple calculator for bc
30. man command query command help
31. which view the location of the executable file
32. whereis view the location of the file
33. Use locate with the database to view the file location
34. gzip bzip2 compress compression and decompression command
35. Use vi to edit files for VI file names
36. alias command alias setting command unalias release alias
37. tar package unpacking command
38. The head displays the first few lines of the file. The tail displays the last few lines of the file.
39. | MPs queue> Redirection
40. od reads the file content in binary format
41. log on to the super administrator su do and run the command as a manager.
42.tar package installation instructions
./Configure? Prefix =/usr/local configuration before Compilation
Make Compilation
Make install the compiled source code package
43. rpm? Parameter rpm installation query deletion upgrade, etc.
44. ifconfig network configuration command
Ping the target host
Netstat displays listening ports and processes
45. clear Screen
46. useradd Add User
47. Change passwd Password
48. chgrp chown modify the user group owner of the file
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