PREUN

/bin/sh

if [ "$1" = 0 ]; then
    /usr/sbin/alternatives --remove ettercap /usr/bin/ettercap-tui
fi

POSTIN

/bin/sh

/usr/sbin/alternatives --install  /usr/bin/ettercap ettercap /usr/bin/ettercap-tui 30 \
            --slave /usr/bin/ettercap-text ettercap-text /usr/bin/ettercap-tui \
            --slave  /usr/bin/ettercap-curses ettercap-curses /usr/bin/ettercap-tui