if [ -e /etc/security/limits.conf ]; then
rm -f /etc/security/limits.conf.$$
cp /etc/security/limits.conf /etc/security/limits.conf.$$
if [ -e /etc/security/limits.conf ]; then
rm -f /etc/security/limits.conf.$$
cp /etc/security/limits.conf /etc/security/limits.conf.$$