如下所示，使用tar -zxvf解压文件时遇到”gzip: stdin: not in gzip format“等错误：
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代码如下:
[root@DB-Server tmp]# [root@DB-Server tmp]# tar -zxvf Percona-XtraBackup-2.2.12-r8726828-el5-x86_64-bundle.tar gzip: stdin: not in gzip format tar: Child returned status 1 tar: Error exit delayed from previous errors
最终发现这个压缩包没有用gzip格式压缩，所以不用加z参数，汗颜！
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代码如下:
[root@DB-Server tmp]# tar -xvf Percona-XtraBackup-2.2.12-r8726828-el5-x86_64-bundle.tar percona-xtrabackup-2.2.12-1.el5.x86_64.rpmpercona-xtrabackup-debuginfo-2.2.12-1.el5.x86_64.rpmpercona-xtrabackup-test-2.2.12-1.el5.x86_64.rpmYou have new mail in /var/spool/mail/root[root@DB-Server tmp]#
