sudo chown root file.txt
, change the owner of file.txt
to the root
user.sudo chown root:root file.txt
, change the owner and group of file.txt
to root
.sudo chown :staff file.txt
, change the group of file.txt
to the staff
group.sudo chown -R root:root /var/www
, change the owner and group of all files and directories under /var/www
to root
.sudo chown -h root file.txt
, fix the owner of the file pointed to by the symbolic link file.txt
to root
.Note: the sudo
in the command line code means to execute the command with administrator privileges.