Batch file - get file name without extension from passed parameter

Question

Hi, i am trying to create a DOS batch file to run:

.tex --> .dvi : latex filename.tex  
.dvi --> .ps  : dvips -o filename.ps filename 
.ps --> .pdf  : ps2pdf filename.ps

I tried:

latex %1
dvips -o %~n%1.ps %n%1
ps2pdf %~n%1.ps

assuming that ~n will give me the file name without the extension of a passed file. However, it doesn't work (apart from the first line). Does anyone know the correct version?

Answer 1

Ok, some trial and error gave me

latex %1 
dvips -o %~n1.ps %~n1
ps2pdf %~n1.ps

which does the trick