#!/bin/sh

eselect kernel list
printf "\nSelect a kernel you want to build : "
read ANS

eselect kernel set $ANS
cd /usr/src/linux

make menuconfig

printf "Continue? (y/n) "
read CONT

if [ "$CONT" = "y" ]; then
    make -j20 && \
    make -j20 modules_install  && \
    make -j20 install && \
    emerge --ask @module-rebuild

else
    printf "\n\nKernel update aborted.\n"
fi