POSTIN
/bin/sh
for s in /bin/ksh /bin/rksh /usr/bin/ksh /usr/bin/rksh do if [ ! -f /etc/shells ]; then echo "$s" > /etc/shells else if ! grep -q '^'"$s"'$' /etc/shells ; then echo "$s" >> /etc/shells fi fi done /bin/systemctl try-restart systemd-binfmt.service >/dev/null 2>&1 || :
POSTUN
/bin/sh
for s in /bin/ksh /bin/rksh /usr/bin/ksh /usr/bin/rksh do if [ ! -f $s ]; then sed -i '\|^'"$s"'$|d' /etc/shells fi done