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批量写入文件但文本消失

tag-icon • tag-icon command-line batch batch-file vbscript echo
批量写入文件但文本消失

我在使用批处理文件写入文件时遇到问题。似乎有一个字符触发了 echo 结尾，就像这样：代码是一个下载器。

C:\ProgramData\Tempfolder\test.vbs ECHO if WScript.Arguments.Count < 1 then

但是文件输出是这样的。

if WScript.Arguments.Count  then

这是我的代码：

mkdir C:\ProgramData\Tempfolder


>> C:\ProgramData\Tempfolder\test.vbs ECHO if WScript.Arguments.Count <1 then
>> C:\ProgramData\Tempfolder\test.vbs ECHO   MsgBox "Usage: wget.vbs <url> (file)"
>> C:\ProgramData\Tempfolder\test.vbs ECHO   WScript.Quit
>> C:\ProgramData\Tempfolder\test.vbs ECHO end if
>> C:\ProgramData\Tempfolder\test.vbs ECHO URL = WScript.Arguments(0)
>> C:\ProgramData\Tempfolder\test.vbs ECHO if WScript.Arguments.Count > 1 then
>> C:\ProgramData\Tempfolder\test.vbs ECHO   saveTo = WScript.Arguments(1)
>> C:\ProgramData\Tempfolder\test.vbs ECHO else
>> C:\ProgramData\Tempfolder\test.vbs ECHO   parts = split(url,"/") 
>> C:\ProgramData\Tempfolder\test.vbs ECHO   saveTo = parts(ubound(parts))
>> C:\ProgramData\Tempfolder\test.vbs ECHO end if
>> C:\ProgramData\Tempfolder\test.vbs ECHO Set objXMLHTTP = CreateObject("MSXML2.ServerXMLHTTP")
>> C:\ProgramData\Tempfolder\test.vbs ECHO objXMLHTTP.open "GET", URL, false
>> C:\ProgramData\Tempfolder\test.vbs ECHO objXMLHTTP.send()
>> C:\ProgramData\Tempfolder\test.vbs ECHO If objXMLHTTP.Status = 200 Then
>> C:\ProgramData\Tempfolder\test.vbs ECHO Set objADOStream = CreateObject("ADODB.Stream")
>> C:\ProgramData\Tempfolder\test.vbs ECHO objADOStream.Open
>> C:\ProgramData\Tempfolder\test.vbs ECHO objADOStream.Type = 1 'adTypeBinary
>> C:\ProgramData\Tempfolder\test.vbs ECHO objADOStream.Write objXMLHTTP.ResponseBody
>> C:\ProgramData\Tempfolder\test.vbs ECHO objADOStream.Position = 0    'Set the stream position to the start
>> C:\ProgramData\Tempfolder\test.vbs ECHO Set objFSO = Createobject("Scripting.FileSystemObject")
>> C:\ProgramData\Tempfolder\test.vbs ECHO If objFSO.Fileexists(saveTo) Then objFSO.DeleteFile saveTo
>> C:\ProgramData\Tempfolder\test.vbs ECHO Set objFSO = Nothing
>> C:\ProgramData\Tempfolder\test.vbs ECHO objADOStream.SaveToFile saveTo
>> C:\ProgramData\Tempfolder\test.vbs ECHO objADOStream.Close
>> C:\ProgramData\Tempfolder\test.vbs ECHO Set objADOStream = Nothing
>> C:\ProgramData\Tempfolder\test.vbs ECHO End if
>> C:\ProgramData\Tempfolder\test.vbs ECHO Set objXMLHTTP = Nothing
>> C:\ProgramData\Tempfolder\test.vbs ECHO WScript.Quit
start C:\ProgramData\Tempfolder\test.vbs (link goes here )

整个 echo 输出如下

if WScript.Arguments.Count  then      <---- some numbers are missing 
MsgBox "Usage: wget.vbs <url> (file)"
WScript.Quit
end if
URL = WScript.Arguments(0)              <------- 1 line is missing 
saveTo = WScript.Arguments(1)
else
parts = split(url,"/") 
saveTo = parts(ubound(parts))
end if
Set objXMLHTTP = CreateObject("MSXML2.ServerXMLHTTP")
objXMLHTTP.open "GET", URL, false
objXMLHTTP.send()
If objXMLHTTP.Status = 200 Then
Set objADOStream = CreateObject("ADODB.Stream")
objADOStream.Open
objADOStream.Type = 1 'adTypeBinary
objADOStream.Write objXMLHTTP.ResponseBody
objADOStream.Position = 0    'Set the stream position to the start
Set objFSO = Createobject("Scripting.FileSystemObject")
If objFSO.Fileexists(saveTo) Then objFSO.DeleteFile saveTo
Set objFSO = Nothing
objADOStream.SaveToFile saveTo
objADOStream.Close
Set objADOStream = Nothing
End if
Set objXMLHTTP = Nothing
WScript.Quit

如您所见，回显的文本中缺少一行。是否有某种开始和结束字符，以便我可以回显类似的命令？

如果有人能回答我的问题我会很高兴。

答案1

以此>> C:\ProgramData\Tempfolder\test.vbs ECHO if WScript.Arguments.Count <1 then为例....

如果您尝试在命令提示符中单独执行此特定行，它将失败并出现“系统找不到指定的文件”错误。

这是因为它将其读取<1为文件输入命令（与输出相反>）。

因此您必须“转义”，<以便它在 Echo 中被视为纯文本字符，而不是文件输入重定向命令。

意思是，对于这种情况，您需要使用：

>> C:\ProgramData\Tempfolder\test.vbs ECHO if WScript.Arguments.Count ^<1 then

相同

>> C:\ProgramData\Tempfolder\test.vbs ECHO if WScript.Arguments.Count > 1 then

你想逃离>那一个：

>> C:\ProgramData\Tempfolder\test.vbs ECHO if WScript.Arguments.Count ^> 1 then

是^批处理转义字符，您需要在回显的每一行中都记住这一点，以备不时之需。

从http://ss64.com/nt/syntax-esc.html：

^ 转义字符。

在命令符号前添加转义字符可使其被视为普通文本。在管道传输或重定向任何这些字符时，应使用转义字符作为前缀：& \ < > ^ |

 e.g.  ^\  ^&  ^|  ^>  ^<  ^^

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