[linux]通过ssh远程设定各服务器时间，从而实现集群时间同步

#!/usr/bin/env bash #all hosts should to sync time, all hosts should no password login echo othersynchosts_array=('xufeng-1' 'xufeng-2') #currnt time in this hostcurrentDay=`date '+%Y-%m-%d'`currentTime=`date '+%H:%M:%S'`echo 'current day in this host is 'echo $currentDayecho 'current time in this host is 'echo $currentTime #loop host to set timefor hostname in ${synchosts_array[*]}do echo $hostname ssh -t $hostname bash -c ''date -s '$currentDay' &&hwclock --systohc'' ssh -t $hostname bash -c ''date -s '$currentTime' &&hwclock --systohc''done

在某个节点上配置任务调度周期即可：

crontab -u root -e

*/1 * * * * /opt/software/rootbin/synctime.sh >> /opt/software/rootbin/synctime.log

每分钟执行一次。