_avail_kernel_builds()
{
    case $COMP_CWORD in
        1)
            if [[ "${COMP_WORDS[COMP_CWORD]}" =~ ^[0-9] ]];then
                COMPREPLY=( /secure/kernel_builds/"${COMP_WORDS[COMP_CWORD]}"* )
            else
                COMPREPLY=( /secure/kernel_builds/"${COMP_WORDS[COMP_CWORD]}"[0-9]*/ )
            fi
            COMPREPLY=( "${COMPREPLY[@]#/secure/kernel_builds/}" )
            COMPREPLY=( "${COMPREPLY[@]%/}" )
            ;;
    esac
}

_avail_kernel_builds() {
    case $COMP_CWORD in
        1) COMPREPLY=( $(cd /secure/kernel_builds; compgen -d -X "source") ) ;;
    esac
 }

_avail_kernel_builds() {
    case $COMP_CWORD in
        1) COMPREPLY=( $(cd /secure/kernel_builds; compgen -d -X "source") ) ;;
    esac
 }

declare -a accept
declare -a reject
for s in "${COMPREPLY[@]}"; do
    if [[ "$s" =~ want ]]; then
        accept=( "${accept[@]}" "$s" )
    else
        reject=( "${reject[@]}" "$s" )
    fi
done