sudo on ubuntu

Here are  some sudo   variations I use. (Be careful :) )

    sudo command - run command as root
    sudo su – root shell open
    sudo su user – open shell as a user
    sudo -k – forget your password sudo
    gksudo command – sudo visual dialog (GNOME)
    kdesudo command – sudo visual dialog (KDE)
    sudo visudo – edit / etc / sudoers
    gksudo nautilus – root file manager (GNOME)
    kdesudo konqueror – root file manager (KDE)