A .bat or .wsh script that can search for files

Question

I am looking for some examples of a .bat OR .wsh script that can do the following:

• Recursively read file names in a directory with a user-provided extension (.dll, .exe, etc)
• Search a user-provided directory for the above file names
• Generate a txt or xls report of the findings, like: x.txt was found in "C:\temp", "C:\blah"

TIA.

EDIT:

Oops, I should clarify: there are two directories and two searches here.

Search 1:

• Search a user provided directory "Dir 1" for all *.dll's.

Search 2:

• Search a different user provided directory "Dir 2" for the file names generated in Search 1. This search also needs to be recursive.

So, if Search 1 finds foo.dll, foo2.dll and foo3.dll in Dir 1, Search 2 should look in Dir 2 for foo.dll, foo2.dll and foo3.dll, and provide a report (simple listing) of each found file.

Answer 1

Why not use dir?

Search current directory and all subdirs for dlls

dir /S *.dll

Search all of C for dlls

dir /S C:\*.dll

Save a report

dir /S C:\*.dll > report.txt

Answer 2

I would study Robocopy to see if this could help (the /L flag is a clue).

Answer 3

Put the following in a .bat file, say FindAll.bat:

@echo OFF

for /f %%F in ('dir %2\%1 /s /b') do (
    <nul (set /p msg=%%~nxF )
    for /f %%G in ('dir %3\%%~nxF /s /b') do (
        if exist %%G (
            @echo found at %%G
        ) 
    )
)

%1 is the user provided file mask.

%2 is the user provided directory to search first.

%3 is the user provided directory to search second.

Call from the command line to generate a report:

FindAll *.dll d:\dir1 d:\dir2 > dll_report.txt 2>&1

The <nul (set /p) trick will output text to the console without a new line (courtesy Pax from this thread: How to code a spinner for waiting processes in a Batch file?)

The 2>&1 added when calling the batch file is needed to capture all the output to the file (courtesy aphoria from this thread: Underused features of Windows batch files)