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Editor to share with you how to make batch processing parsed by wsh, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Sample batch: test.bat

The code is as follows:

: On Error Resume Next

Sub bat

Echo off & cls

Echo Batching_codez_here_following_vbs_rules & pause

Start wscript-e:vbs "% ~ f0"

Exit Sub

End Sub

MsgBox "This is vbs"

The above code skillfully makes use of the syntax features of bat and vbs, so that the same file is recognized by cmd.exe as a batch, so that wscrpt.exe recognizes as vbs, and conforms to the syntax of both, and ensures that there are no errors, ensuring a high degree of compatibility between the two. Call it bat/vbs compound programming (Hybird Programming).

Give a rough explanation of the code

Reference:

: On Error Resume Next

Cmd.exe is recognized as a comment

Wscript.exe recognizes that it represents a branch in vbs syntax, and then On Error Resume Next, that is, asks WSH to ignore some errors.

Reference:

Start wscript-e:vbs "% ~ f0"

Cmd.exe is recognized as: start wscript.exe, and its parameters are:

①-e:vbs setting to parse the file itself in vbs

② "% ~ f0" refers to the batch itself.

Wscript.exe recognizes this as: call a function called start, whose argument is the variable wscript, and then subtract e from the result of this function. And then there's another: branch, and then another call to a function called vbs, with the argument to the character "% ~ f0".

This sentence is the most ingenious because it successfully got the vbs engine to interpret a batch without errors! Of course, these start () and vbs () functions do not exist, but they are executed by cmd.exe as commands. Why not use wscript / / e:vbs "% ~ f0" to execute? Vbs parsing will make mistakes, hehe

The core idea of this code has been introduced. Next, in order for the batch to exit immediately after calling itself with vbs, we need exit or goto: eof, but goto call exit is another keyword in vbs, so we can only use exit sub that conforms to vbs syntax, so we add one in the second sentence

Sub bat, in fact, cmd.exe is looking for a command called sub.exe, but this command does not exist, cmd.exe skips. Then add an exit sub and end sub to the 6 and 7 sentences to let the batch end, while conforming to the syntax of vbs

That echo off & cls batch means @ echo off, but vbs doesn't recognize the @ symbol, so change it to echo off & cls, and vbs can be parsed to call a function called echo () with the argument off & cls, which is the addition of the two strings off and cls.

Well, next, you are free to write vbs scripts in batches, which are as efficient as the real vbs!

The advantage of this code is that there is no need to generate temporary files. Its practical echo or more or find to generate temporary vbs is a waste of system resources, with this code I wrote, it is completely free of these troubles. Direct mixed programming, to start wscript-e:vbs "% ~ f0" as the limit, write batch above, write vbs below, parallel!

If you have better ideas, you can discuss them with us.

Allyesno:% ~ fI-extends% I to a fully qualified pathname

In addition, if you use shell, you also need to use echo to write vbs. In this case, there is no saving system resources, unless copy con can write it, then just write any script file.

There are other situations.

The above is all the contents of the article "how to make batches parsed by wsh". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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