How do you grant executable permission to a file in Linux?

In Linux, you can use the chmod command to add executable permission to a file. Here is how to use the chmod command:

1. Grant the owner execute permissions to the file.
2. Make the file executable for the owner.
3. Grant executable permission to the group of the file.
4. Change the file permissions to allow the group to execute the file.
5. Grant execute permissions to additional users on the file.
6. Give others execute permission for the file.
7. Grant executable permission to all users for the file.
8. Change the permissions of the file to allow execution for all users.

Multiple permission parameters can be combined to add multiple permissions. For example, to give a file both owner and group execute permissions.

chmod ug+x 文件名

Before using the chmod command, it is necessary to have sufficient privileges. If you are a regular user, you may need to use the sudo command to elevate your permissions.