How to set permissions for files in Linux? Linux file permission setting tips

If we want to run such a file, we need to add an executable permission to the file separately. How to add an executable file to the file? There are three types of access permissions for files or directories: read-only, write-only and executable. Let's take a look at the detailed operation process.

Log in to the Linux system and create a new terminal

Use the touch command in the terminalCreate a file

Use Vim editor, write some content in the file, enter: wq to save and exit

Return to the terminal, Use ls -l to view file permissions

Use the chmod command and the x parameter to give the file executable permissions

The x here represents executable permissions (read, write, and executable permissions are represented by r, w, and x respectively); and the a represents all, which is the three identities of user, user group, and other users. All permission values ​​are modified (if you only modify one of the three identities of user permissions (user), user group permissions (group), and other users (others), you can use u, g or o to replace the letter a); x The plus sign in front means adding permissions (if a permission is to be removed, it will be a minus sign in English).

In enableUse the ls -l command to view the file permission attributes and you will have executable permissions. You can use the absolute path of the file to run it

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