File set_mysql_84.latest.sh of Package dba-mysql-848

#!/bin/bash
#set -x
v=`ls -1d 8.4.? 8.4.?? 2>/dev/null|cut -d "." -f3 |sort -n |tail -1`
i=`ls -l 8.4.latest.bak* 2>/dev/null|wc -l`
test -L 8.4.latest && mv 8.4.latest 8.4.latest.bak${i}
rc=`ln -fs 8.4.${v} 8.4.latest`
exit $rc