In my opinion, it is not best to overwrite this file if you already have it.
在我看来，这不是最好的覆盖此文件如果您已经有了。
Note that this can only save you while you're trying to redirect output to an existing file — it isn't any help if you're using cp or mv to overwrite the file.
注意，这只能防止把输出重定向到现有文件；如果使用cp或mv覆盖文件，这个变量没有任何帮助。
WARNING: this will overwrite every single file on your partition with the one in the archive!
警告：这会把你分区里所有文件替换成压缩文档里的文件！
WARNING: this will overwrite every single file on your partition with the one in the archive!
警告：这会把你分区里所有文件替换成压缩文档里的文件！
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