在A机器上用tar压缩的文件，在B机器上进行解包的时候，如果两个机器的时间不一致，如B机器的时间落后A机器的时间，这时

就会出现time stamp in the future的问题。如何解决这个问题呢：

（1）一是检查B机器的时间，如果确有问题请修改B机器的时间（sudo date -s "YYYY-MM-DD HH:MM:SS"）

（2）二是使用tar命令的-m参数，比如tar xmzf abc.tgz（-m, --touch, --modification-time【don't extract file modified time】）

大致意思就是suppress时间戳检查，而是使用新的系统时间进行解包，解包后的文件时间戳将是新的系统时间而不是原文件的时间戳了。

以上每一条都可以解决问题，比如第一条可以修改系统的时间超过原压缩包中文件的时间戳即可，而第二条完全不顾时间戳是什么，直接修改时间戳。

date -s 11/18/2013

date -s 11:10:53

这样在执行脚本或者tar 命令就不报错了！

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