File set_rabbitmq_4.latest.sh of Package dba-rabbitmq-411

#!/bin/bash
#set -x
v=`ls -1d 4.?.latest 4.??.latest 4.???.latest  2>/dev/null|cut -d "." -f1-2 |sort -n |tail -1`
i=`ls -l 4.latest.bak* 2>/dev/null|wc -l`
test -L 4.latest && mv 4.latest 4.latest.bak.${i}
rc=`ln -fs ${v}.latest 4.latest`
exit $rc