Linux basic Commands--managing the properties of directories and files

One, view the properties of directories and files

1,ls command

Command format: LS "options" directory or file

• -L: Output in long format

• -D: View the properties of a directory

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The meaning of the attribute in:

• 1th character: Indicates the type of file, "D" Directory, "B" block device file, "C" character device file, "-" Normal file, "I" link file

• 第2-4 Character: Represents the owner of a file's access rights to the file (U)

• 第5-7 character: Represents the user's access rights to the file for a group of files (g)

• 8th to 10th character: represents the access rights of other users to the file (O)

• 11th character: Here's "." Related to SELinux

Permission to mark:

• R: Indicates read permission, can be replaced by number 4

• W: Indicates write permission, can be replaced by number 2

• X: Represents the permission to execute, the number 1 can be used instead

  
  

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Second, set permissions for directories and files

1.chmod "Ugoa" "+-=" "rwx" file or directory

U is the owner of the file or directory, G is a group of files or directories, O for other users, a for all users

2.chmod nnn file or directory (n is the number that corresponds to the permission)

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Third, set the directory and document ownership

1.chown owner: A group file or directory

Note: When you set up a generic group, you need to use ":" To separate the genus Group, using ": Belong to Group"

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This article is from the "New Start" blog, so be sure to keep this source http://yuanshuai.blog.51cto.com/10539781/1749074

Linux basic Commands--managing the properties of directories and files