dos命令将文件名和扩展名分隔为变量

时间:2012-01-05 20:53:29

标签: batch-file dos batch-processing batch-rename

我需要将文件x.dtsx从位置a复制到位置b。

如果b中已经存在x.dtsx,那么我需要将x.dtsx重命名为x_Standby.dtsx然后,将x.dtsx重命名为b

我目前的代码如下:

if exists %1 rename %1 %(should be 1_standy.extension)
xcopy %1 %2

1 个答案:

答案 0 :(得分:34)

如果使用命令处理器扩展(在Windows 2000及更高版本上是默认设置),则可以使用以下可选语法:

%~1         - expands %1 removing any surrounding quotes (")
%~f1        - expands %1 to a fully qualified path name
%~d1        - expands %1 to a drive letter only
%~p1        - expands %1 to a path only
%~n1        - expands %1 to a file name only
%~x1        - expands %1 to a file extension only
%~s1        - expanded path contains short names only
%~a1        - expands %1 to file attributes
%~t1        - expands %1 to date/time of file
%~z1        - expands %1 to size of file

可以组合修饰符以获得复合结果:

%~dp1       - expands %1 to a drive letter and path only
%~nx1       - expands %1 to a file name and extension only

所以你的命令看起来像这样:

if exist %2\%~nx1 ren %2\%~nx1 %~n1_standby%~x1