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create_user() { getent group xtheme &>/dev/null \ || groupadd -g 142 xtheme getent passwd xtheme &>/dev/null \ || useradd xtheme -u 142 -g 142 \ -d /var/lib/xtheme -s /bin/false } post_install() { create_user } post_upgrade() { create_user } post_remove() { getent passwd xtheme &>/dev/null && userdel xtheme }