_airodump-ng()
{
    local current previous commands help_options

    previous=${COMP_WORDS[COMP_CWORD-1]}
    current="${COMP_WORDS[COMP_CWORD]}"
    commands="--help --ivs --gpsd --write --beacons --showack --update --berlin --channel --band --cswitch --output-format --ignore-negative-one --encrypt --bssid --netmask"
    help_options="setup new search show reply tag dump restore search-terms"
    COMPREPLY=( $(compgen -W "${commands}" -- ${current}) ) ;
}

complete -o default -o bashdefault -F _airodump-ng airodump-ng