Renaming a file to match a wildcard result

Question

I am trying to compress a file using built-in Windows tools. I need to use a wildcard to read the file because the input filename changes slightly each day (to reflect the date stamp). The current batch file that I have found will ZIP up a file based on
a wildcard, but it gives the resulting ZIP output file a static name.
I need it to have the exact same name as the input file.
E.g.: if the input filename is blahblahblah02132014.txt, the output filename needs to be blahblahblah02132014.zip.
Please help?
Here is my current script:
set FILETOZIP=C:\Users\<my.name>\Documents\blah*.txt
set TEMPDIR=C:\temp738
mkdir %TEMPDIR%
copy %FILETOZIP% %TEMPDIR%
echo Set objArgs = WScript.Arguments > _zipIt.vbs
echo InputFolder = objArgs(0) >> _zipIt.vbs
echo ZipFile = objArgs(1) >> _zipIt.vbs
echo CreateObject("Scripting.FileSystemObject").CreateTextFile(ZipFile, True).Write "PK" ^& Chr(5) ^& Chr(6) ^& String(18, vbNullChar) >> _zipIt.vbs
echo Set objShell = CreateObject("Shell.Application") >> _zipIt.vbs
echo Set source = objShell.NameSpace(InputFolder).Items >> _zipIt.vbs
echo objShell.NameSpace(ZipFile).CopyHere(source) >> _zipIt.vbs
echo wScript.Sleep 2000 >> _zipIt.vbs
CScript _zipIt.vbs %TEMPDIR% C:\Users\<my.name>\Documents\someArchive.zip
echo Y | del %TEMPDIR%\blah*.*
rmdir %TEMPDIR%
pause

Answer 1

Thanks.
I can get the right filename now, with the ZIP extension and everything.
But I'm still getting the error when I try to rename the file. This line:
rename C:\Users\<my.name>\Documents\ZipFile.zip %OUT_NAME%
gives the following error when it executes:
"The syntax of the command is incorrect."
The environment variable %OUT_NAME% is not being set in your last example, but I think you were doing that to teach me something.
I used the code from your prior example again:
for /f "delims=" %%I in ('echo %IN_NAME%') do set OUT_NAME=%%~dpnI.zip
and I can see that the correct filename ("C:\Users\<my.name>\Documents\Blah blah blah 20140218.zip") is being set in the environment variable %OUT_NAME%. But again, when I go to rename "ZipFile.zip" to that new name, I get the syntax error. I think
it is because of the spaces in the filename.
Sorry for making this harder than it needs to be...