post_install() { getent passwd zeronet &>/dev/null || { echo -n ">>> Creating zeronet user... " useradd --system --user-group --home /opt/zeronet zeronet echo "done" } post_upgrade } post_upgrade() { chown -R zeronet:zeronet /opt/zeronet } pre_remove() { getent passwd zeronet &>/dev/null && { echo -n ">>> Removing zeronet user... " userdel zeronet echo "done" } }