Programming Tutorials

chown in Mac OS X

By: Strauss K in macos Tutorials on 2011-02-03  

chown is a command-line utility used in Unix-based operating systems, including Mac OS X, to change the owner and group of a file or directory. In Mac OS X, which is based on the Unix-like operating system, macOS, chown is available in the Terminal application.

To use chown, open the Terminal application and navigate to the directory where the file or directory you want to modify is located. Then, use the following command:

sudo chown username:groupname filename

Replace "username" with the name of the user to whom you want to assign ownership, "groupname" with the name of the group to which you want to assign ownership, and "filename" with the name of the file or directory that you want to modify. You may need to use the sudo command before chown if you don't have the necessary permissions to modify the file or directory.

For example, if you want to change the owner of a file named "example.txt" to a user named "john" and the group ownership to a group named "staff", you would use the following command:

sudo chown john:staff example.txt

After running this command, the owner of the "example.txt" file would be changed to "john" and the group ownership would be changed to "staff".

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