post_install() {
    echo "put something like this at the end of your ~/.bashrc to get a random pokemon on every bash launch:"
    echo ""
    echo "cat /usr/share/pokeshell/\$((\$RANDOM % 151 + 1)).pokemon"
    echo ""
    echo "For fish shell you customize your greeting function by changing ~/.config/fish/functions/fish_prompt.fish:"
    echo ""
    echo "function fish_greeting"
    echo "    set r (random)"
    echo "    cat /usr/share/pokeshell/(math \"\$r % 151 + 1\").pokemon"
    echo "end"
}

post_upgrade() {
    echo "put something like this at the end of your ~/.bashrc to get a random pokemon on every bash launch:"
    echo ""
    echo "cat /usr/share/pokeshell/\$((\$RANDOM % 151 + 1)).pokemon"
    echo ""
    echo "For fish shell you customize your greeting function by changing ~/.config/fish/functions/fish_prompt.fish:"
    echo ""
    echo "function fish_greeting"
    echo "    set r (random)"
    echo "    cat /usr/share/pokeshell/(math \"\$r % 151 + 1\").pokemon"
    echo "end"
}