pkgname=linux-status post_install() { systemctl --system daemon-reload systemctl --system enable "$pkgname.service" systemctl --system start "$pkgname.service" } pre_remove() { systemctl --system stop "$pkgname.service" systemctl --system disable "$pkgname.service" systemctl --system daemon-reload } pre_upgrade() { pre_remove "$1" } post_upgrade() { post_install "$1" }