toggle-sshkeys.sh

R='\033[0;31m'
G='\033[0;32m'
NC='\033[0m'
NEW_EMAIL=$(cat ~/.ssh/id_ed25519_secondary.pub  | awk '{ print $3}')
echo "${G}Current: $(cat ~/.ssh/id_ed25519.pub | awk '{ print $3}')"
echo "${R}New: $NEW_EMAIL${NC}"

printf 'Is this a good question (y/n)? '
read answer

if [ "$answer" != "${answer#[Yy]}" ] ;then
    mv ~/.ssh/id_ed25519 ~/.ssh/temp
    mv ~/.ssh/id_ed25519.pub ~/.ssh/temp.pub
    mv ~/.ssh/id_ed25519_secondary ~/.ssh/id_ed25519
    mv ~/.ssh/id_ed25519_secondary.pub ~/.ssh/id_ed25519.pub
    mv ~/.ssh/temp ~/.ssh/id_ed25519_secondary
    mv ~/.ssh/temp.pub ~/.ssh/id_ed25519_secondary.pub

    git config --global --add user.email "$NEW_EMAIL"
    echo "${G}New set: $(cat ~/.ssh/id_ed25519.pub | awk '{ print $3}')${NC}"
else
    echo "${R}Nothing done"
fi