AIX 备份整个文件夹或单个文件

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备份设备：/dev/rmt0；需备份全部：/home
备份步骤：
1. 取下/home：#umount /home
2. 如果取下失败，因为有进程使用。
列出使用进程：#lsof /home
终止相关进程：#kill -9 PID
3. 检查文件系统：#fsck /home
4. 备份：backup -f /dev/rmt0 -0 -u /home
-0：表示全部备份；
1-9：表示在第n-1次备份后修改过的文件
5. 装上/home：#mount /home
需备份单个文件或者文件夹（备份./prifle；/home/test 按Ctrl+D结束）：
#backup -f /dev/rmt0 -iq
./prifile
/home/test

^D

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