Windows – can I use CMD to search for files in windows

Try a find in a find:

find . -type d -name "a*" -exec find {} -name "b" \;

Starting at the current directory (.), find will look for all directories starting with the letter a recursively. For each directory it finds, it will look inside it for a file named b.

If you only want it to look in the folders starting with a, and no directories in those a* folders, use maxdepth:

find . -type d -name "a*" -exec find {} -maxdepth 1 -name "b" \;

to get rid of errors:

find . -type d -name "a*" 2> /dev/null -exec find {} -maxdepth 1 -name "b" \;

This should do it:

@echo off & for /f %a in ('dir /s /b') do echo %~fa %~za

It's not very efficient...running it for folders containing a ton of files may be sketchy, so try it on small folders first.

From the "for /?" help text (I used 'a' instead of 'I')

In addition, substitution of FOR variable references has been enhanced.
You can now use the following optional syntax:

%~I         - expands %I removing any surrounding quotes (")
%~fI        - expands %I to a fully qualified path name
%~dI        - expands %I to a drive letter only
%~pI        - expands %I to a path only
%~nI        - expands %I to a file name only
%~xI        - expands %I to a file extension only
%~sI        - expanded path contains short names only
%~aI        - expands %I to file attributes of file
%~tI        - expands %I to date/time of file
%~zI        - expands %I to size of file
%~$PATH:I   - searches the directories listed in the PATH
               environment variable and expands %I to the
               fully qualified name of the first one found.
               If the environment variable name is not
               defined or the file is not found by the
               search, then this modifier expands to the
               empty string

The modifiers can be combined to get compound results:

%~dpI       - expands %I to a drive letter and path only
%~nxI       - expands %I to a file name and extension only
%~fsI       - expands %I to a full path name with short names only
%~dp$PATH:I - searches the directories listed in the PATH
               environment variable for %I and expands to the
               drive letter and path of the first one found.
%~ftzaI     - expands %I to a DIR like output line