Linux Common commands

• Introduction to basic commands:

2. CD command to switch directories
4. PWD command to view the current directory
6. ls command View all files and directories in the current directory
8. The PWD command displays the directory that is currently located.
10. mkdir command to create a directory
12. rmdir command to delete empty directories
14. RM command to delete files or directories
16. CP Command Copy File
18. MV command to rename or move files or directories
20. Touch command to create a file
22. Useradd command to create a user
24. Userdel command to delete a user
26. Groupadd command to create a group
28. Groupdel command to delete a group
30. Find command to locate a file or directory file or directory
32. VI command to modify a file
34. Cat command to view file contents
36. More commands to view the contents of a file
38. echo Command echoing
40. > a greater than symbol that overrides the add
42. >> two greater than symbol, indicating append

• Some of the conceptual content used in the command and some of the fixed content

1. Absolute path: If the path behind the command is/home/user1, then this path is an absolute path, that is, the path is the root directory of the Linux, which is the absolute path.
2. Relative path: If used in a command such as:.. /home, that path is considered a relative path, that is, the path itself is not started by the root directory, but is referred to as the relative path starting at the current path.
3. . : Represents the current directory
4. .. : Represents the previous level of the directory (note: The root directory is the current directory, and the root directory is the boss of the directory system)!! There is no directory on the root directory! )
5. ~: Indicates the user's home directory
6. -: Indicates the last directory to switch directories (a little confused!!!) Let's take a look at the following example! This is more clear)
7. To the previous description: for " conceptual content" and "fixed content", this is purely self-added no detailed view, so ... Good for memory but ... .

• Detailed description of the use of the Linux command (because the command of the introduction of the space is larger, and why the article's view, so will be introduced in the form of links, of course, the basic command is not possible to write a comprehensive therefore, this article will be perfected in the future! Excuse me! _！ ）

Linux Common commands