备份单个文件并覆盖Windows中与批处理文件一起存在的文件

由单于语海发布于 2020-05-09 11:11:34

The question could be a duplicate but I didn't find anything that explains it. I have a batch that changes hosts entries in Windows. Before it's doing that I want that it makes a copy in the same folder just as hosts.bak and if the backup already exists it should overwrite it.

HORSE

2020-05-09 11:11:34

做就是了：

Out-File .\fileToBackup.txt .\hosts.bak

默认情况下，Out-File会覆盖文件（如果存在）

det

2020-05-09 11:11:34

将此添加到您的CMD脚本中：

SET "_HostFile=%SystemRoot%\System32\Drivers\ETC\Hosts"
IF EXIST "%_Hostfile%.bak" (
  DEL /F "%_Hostfile%.bak" )
Copy "%_Hostfile%" "%_Hostfile%.bak"

单于语海

这家伙很懒，什么都没留下

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