To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

touch ~/.sudo_as_admin_successful

rm ~/.sudo_as_admin_successful

# sudo hint
# if [ ! -e "$HOME/.sudo_as_admin_successful" ]; then
#     case " $(groups) " in * admin *)
#     if [ -x /usr/bin/sudo ]; then
#     cat <<-EOF
#     To run a command as administrator (user "root"), use "sudo <command>".
#     See "man sudo_root" for details.
#
#     EOF
#     fi
#     esac
# fi

$ sudo grep -R "man sudo_root" /etc

/etc/bash.bashrc:   See "man sudo_root" for details.