Which permission allows a user to modify file content?

The permission that allows a user to modify file content is known as "Write" permission. This permission enables the user to not only make changes to the existing file but also to add new content, delete content, or alter the file in any way they choose. It's essential for any user who needs to edit documents, configuration files, or any other type of digital content.

In contrast, the Read permission allows users to view the file content but does not grant the ability to change it. Execute permission pertains to running executable files or scripts, and Share permission typically deals with the ability to allow others to access the file or folder rather than modifying the file itself. Therefore, Write permission is specifically designed for altering and saving changes to the content of a file.