Lab Building -4-linux File permissions

$ ls-l/* View file Permissions */

Each line format means: < file type and Permissions link number owner user group file size last modified time file name >

File types and permissions such as:

Explain:

Soft connect: Similar to a shortcut under Windows

Read permissions: Cat file_name

Write permission: gedit file_name

Execute Permissions: Binary program file or script file

notice:< A directory should have both read and Execute permissions to open, and a directory with write permission to allow other files to be created in it >

Other common uses of the LS command: slightly #with the

Change file Owner

$ cd/home/user_name

$ sudo chown user_name file_name #此处user_name为文件的原归属者

$ CP file_name/home/user_name #此处user_name为要重新归属的用户名

File Permission binary representation

Change file permissions: $ chmod file_name #700: Each number in turn represents: Owner, user group, other user

Another way to change file permissions, add and subtract assignment operations: $chmod go-rw file_name (Skip)

Lab Building -4-linux File permissions