1 #!/bin/sh 2 3 echo -n "MySQL username: " ; read username 4 echo -n "MySQL password: " ; stty -echo ; read password ; stty echo ; echo 5 6 mysql -u $username -p"$password" -NBe "SHOW DATABASES;" | grep -v 'lost+found' | while read database ; do 7 mysql -u $username -p"$password" -NBe "SHOW TABLE STATUS;" $database | while read name engine version rowformat rows avgrowlength datalength maxdatalength indexlength datafree autoincrement createtime updatetime checktime collation checksum createoptions comment ; do 8 if [ "$datafree" -gt 0 ] ; then 9 fragmentation=$(($datafree * 100 / $datalength)) 10 echo "$database.$name is $fragmentation% fragmented." 11 fi 12 done 13 done
运行结果：
jinyuanbao.mk_activity_shop is 263% fragmented. jinyuanbao.mk_coupon is 113% fragmented. jinyuanbao.mk_dispatch_coupon is 263% fragmented. jinyuanbao.mk_first_order is 88% fragmented. jinyuanbao.notice is 159% fragmented. jinyuanbao.open_oauth is 159% fragmented. jinyuanbao.order_platform_activity_map is 113% fragmented. jinyuanbao.payway is 4% fragmented. jinyuanbao.profile_info is 159% fragmented. jinyuanbao.push_info is 5% fragmented. jinyuanbao.push_tag is 21% fragmented. jinyuanbao.relation_notice is 25% fragmented. jinyuanbao.return_condition is 46% fragmented. jinyuanbao.sec_level_domain is 159% fragmented. jinyuanbao.sendsms is 2% fragmented. jinyuanbao.shop_category is 59% fragmented. jinyuanbao.shop_customer is 88% fragmented. jinyuanbao.shop_goods is 0% fragmented.