Windows 批处理脚本：For ... in 循环捕获程序输出不起作用
我有一个批处理脚本设置来自动从远程 FTP 服务器检索文件。部分要求是每天使用新的日期戳来命名该文件，例如“File_90611.csv”。我有一个可以生成文件名的命令行工具；然后应该使用下面的行将其设置为变量：
for /f "delims=" %a in ('C:\BIN\YesterdayDateStamp.exe') do @set DATESTAMP=%a
问题是这样的。直接从命令行运行时，此行工作正常。但是，当我将完全相同的行放入批处理脚本并运行它时；我收到此错误：
\BIN\YesterdayDateStamp.exe') 此时是意外的。
我删除了脚本中除 FOR ... IN 命令之外的所有内容，以确保不存在某种冲突；但即使如此我仍然收到错误。
一直在谷歌搜索答案，但没有线索。有什么想法吗？非常感谢任何建设性的意见。
谢谢， 坦率
I have a batch script setup to automatically retrieve a file from a remote FTP server. Part of the requirement is the file will be named with a new datestamp each day, such as "File_90611.csv." I have a command line tool that generates the filename; which is then supposed to be set to a variable using the line below:
for /f "delims=" %a in ('C:\BIN\YesterdayDateStamp.exe') do @set DATESTAMP=%a
The problem is this. This line works fine when run from the command line directly. However, when I put this exact same line in a batch script and run it; I get this error:
\BIN\YesterdayDateStamp.exe') was unexpected at this time.
I REM'ed everything out in the script except the FOR ... IN commands to make sure there wasn't some sort of conflict; but even with this I still get an error.
Been Googling for an answer but have no leads. Any ideas? Any constructive input is greatly appreciated.
Thanks,
Frank
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在批处理文件中使用
for时，需要将变量名前面的百分号加倍。来自
for /?：When
foris used in a batch file, you need to double the percent signs in front of the variable name.From
for /?: