MSDOS 6.22 How to get batch directory?

Question

I have an old 386 computer (without windows) which has MSDOS 6.22. So I cannot use any solution that built on cmd.exe (part of windows)

I want to pass current bat script path and name to another program within this bat code.

I try to use %CD% but it looks like works only with cmd.exe I try to use %0 argument, but it hold only the name of bat instead of name with full path

@echo off
set myPath=%cd%
myprogram.exe %myPath%\%0

It doesn't work. The passed parameter is \mybat.bat when I started the bat program from it's directory with full name. After the variables resolved, I want to something like this:

@echo off
myprogram C:\BATCH\MYBAT.BAT

Where the bat placed in c:\batch directory, and it name is mybat.bat

How can I do this?

Answer 1

The solution of @Stephan is good, but requires a predefined helper file.

But you can also build a solution which doesn't need any predefined files.

@echo off

>temp1.bat echo @PROMPT SET _CD=$P
>temp2.bat command /c temp1.bat
call temp2.bat
del temp1.bat
del temp2.bat

echo currentDir=%_CD%

This can be used to get the current directory $P, time $T or date $D, as these values are supported by the PROMPT command.

Answer 2

• write current working folder to a file
• combine with another prepared file
• call the resulting batch file to get a variable
• use as usual

The trick is to create a secondary batch file with just one command: set VARIABLE=somestring. We achieve that by concatenating a prepared file with set VARIABLE= (important: without a line feed) and another file with the desired value.

@echo off
cd>temp.txt
copy init.txt+temp.txt setvar.bat
call setvar.bat
myprogram.exe "%VARIABLE%\mybat.bat"

To create init.txt (you need to do that only one time (reusable file)):
Type COPY CON INIT.TXT on the command prompt.
Enter @SET VARIABLE=^Z (press Ctrl-Z to generate ^Z)
Sadly I don't know a way to create a line without a line feed with code in DOS)

Jeb answered with an interesting solution to get the working folder, but this one is more generic; it works with the output of any command (as long as it's one line only).
Just for example, replace cd>temp.txt with dir | find "bytes free" > temp.txt in above code.

(answer derived from an old answer of mine)