Batch - Inverse/Negative FOR loops?

I'm trying to concatenate many files into two individual files.

The first file will be a concatenation of all other files with "bob" in the filename. The second file will be a concatenation of all files WITHOUT "bob" in the filename. Both files will output the name of the file before actually doing the concatenation.

Here's what I have so far:

            @echo off
            setlocal EnableDelayedExpansion
            set bob=All_bob.txt
            set jimmy=All_jimmy.txt

            if exist %bob% del %bob%
            if exist %jimmy% del %jimmy%

            for %%a in (*bob*.txt) do (
            echo /* >>%bob%
            echo * %%a >>%bob%
            echo */ >>%bob%
            copy/b %bob%+"%%a" %bob%
            echo. >>%bob%
            echo. >>%bob%)


            for %%a not in (*bob*.txt) do (
            echo /* >>%jimmy%
            echo * %%a >>%jimmy%
            echo */ >>%jimmy%
            copy/b %jimmy%+"%%a" 开发者_运维问答%jimmy%
            echo. >>%jimmy%
            echo. >>%jimmy%)

However, the second FOR loop (at the bottom) doesn't want to play nice using "not", and using an exclamation point like this...

            for %%a !(*bob*.txt) do (

...doesn't want to work, either. So how do I concatenate files that do NOT contain what is inside the parenthesis?

I don't think there is a clean solution to this.

You could probably use FINDSTR to filter %%a but that would require turning *bob*.txt into a regular expression and that is probably not easy to automate.

Another (ugly) solution is to use nested loops:

echo bob:
for %%a in (*bob*.txt) do (
    echo %%a
)

echo not bob:
for %%a in (*) do (
    setlocal ENABLEDELAYEDEXPANSION&set inc=1
    for %%b in (*bob*.txt) do if "%%~a"=="%%~b" set inc=0
    if "!inc!"=="1" echo %%a
    endlocal
)

How about using find:

for /F %%a in ('dir /b *.txt') do (
echo %%a | find /V "bob")

This should return all .txt files that don't have "bob" in them.

Using findstr and a regular expression for *bob*.txt:

for /f "usebackq delims=" %%a in (`dir /b ^| findstr ".*bob.*\.txt"`) do (…)

Just use the /V switch to process all other files:

for /f "usebackq delims=" %%a in (`dir /b ^| findstr /v ".*bob.*\.txt"`) do (…)

You can use the help command or the /? switch for for or findstr for more information.
I cleared the delimiters (delims=) to allow for spaces in the filenames.