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post_install() { # add inetsim group if [ ! `grep inetsim /etc/group` ]; then groupadd -g 16 inetsim &>/dev/null fi # run inetsim setup script cd /opt/inetsim ./setup.sh } post_upgrade() { post_install $1 } pre_remove() { # remove users & groups groupdel inetsim &> /dev/null }