转义“）”在Windows批处理中“for”命令

Question

我需要迭代文件中的行。以下命令不起作用：

set filename=c:\program files (x86)\somewhere
...
for /f "delims==" %%i in (%filename%) do echo %%i

因为文件名中存在“）”。错误：

\somewhere) was unexpected at this time.

通过“^”转义在这里不起作用，因为我需要使用变量而不是内联文件名。如何解决这个问题？

Answer 1

将文件名放在双引号中，同时添加 usebackq 选项：

set filename=c:\program files (x86)\somewhere
for /f "usebackq delims==" %%i in ("%filename%") do echo %%i

从 FOR /? 的输出中：

usebackq        - specifies that the new semantics are in force,
                  where a back quoted string is executed as a
                  command and a single quoted string is a
                  literal string command and allows the use of
                  double quotes to quote file names in
                  file-set.

Answer 2

set filename=c:\program files (x86)\somewhere
...
for /f "USEBACKQ delims==" %%i in ("%filename%") do echo %%i

USEBACKQ 允许您对带有空格的路径使用双引号