"Process shell finished" on Windows

[Galen Boyer <galendboyer@gmail.com>]

I posted this on reddit /r/emacs.  Took me awhile to find nntp news
server to use.

I am on Windows 10 Enterprise running Emacs 27.2 but this also happens
on Emacs 28.2.  M-x shell and now I have a buffer running shell.  I then
issue a command that calls some script/executable etc.  It runs
successfully but then when it is complete I see that the command.com
process has been killed.

What I'm showing here is calling cygwins ls.

    c:\GITHUB\edm>ls -la
    ls -la
    total 30
    drwxrwx---+ 1 CHARLES+boyer CHARLES+boyer    0 Dec 17 00:34 .
    drwxrwx---+ 1 CHARLES+boyer CHARLES+boyer    0 Dec 20 10:46 ..
    drwxrwx---+ 1 CHARLES+boyer CHARLES+boyer    0 Dec 19 14:18 .git
    drwxrwx---+ 1 CHARLES+boyer CHARLES+boyer    0 Dec 17 00:34 DBT
    drwxrwx---+ 1 CHARLES+boyer CHARLES+boyer    0 Dec 17 00:34 DataSets
    drwxrwx---+ 1 CHARLES+boyer CHARLES+boyer    0 Dec 17 00:34 External
    drwxrwx---+ 1 CHARLES+boyer CHARLES+boyer    0 Dec 17 00:34 Python
    -rwxrwx---+ 1 CHARLES+boyer CHARLES+boyer   35 Dec 17 00:34 README.md
    drwxrwx---+ 1 CHARLES+boyer CHARLES+boyer    0 Dec 17 00:34 Terraform
    -rwxrwx---+ 1 CHARLES+boyer CHARLES+boyer 1181 Dec 17 00:34 pull_request_template.md
    -rwxrwx---+ 1 CHARLES+boyer CHARLES+boyer   18 Dec 17 00:34 silly.txt

    c:\GITHUB\edm>
    Process shell finished

So, then I M-x shell and get it back

    c:\GITHUB\edm>
    Process shell finished
    Microsoft Windows [Version 10.0.19044.2364]
    (c) Microsoft Corporation. All rights reserved.

    c:\GITHUB\edm>

I originally thought that something about cygwin was an issue.  But it
also happens when I call other executables, but not all of them. For
example, if I execute windows scripts, it is fine.

    c:\GITHUB\edm>dir
    dir
     Volume in drive C is OS
     Volume Serial Number is F228-1278

     Directory of c:\GITHUB\edm

    12/17/2022  12:34 AM    <DIR>          .
    12/17/2022  12:34 AM    <DIR>          ..
    12/17/2022  12:34 AM    <DIR>          DataSets
    12/17/2022  12:34 AM    <DIR>          DBT
    12/17/2022  12:34 AM    <DIR>          External
    12/17/2022  12:34 AM             1,181 pull_request_template.md
    12/17/2022  12:34 AM    <DIR>          Python
    12/17/2022  12:34 AM                35 README.md
    12/17/2022  12:34 AM                18 silly.txt
    12/17/2022  12:34 AM    <DIR>          Terraform
                   3 File(s)          1,234 bytes
                   7 Dir(s)  183,900,532,736 bytes free

    c:\GITHUB\edm>

When I execute something like python, it is fine as well.

    c:\GITHUB\edm>cd Python/
    cd Python/

    c:\GITHUB\edm\Python>python terra.py --help
    python terra.py --help
    usage: terra [-h] [-V] [-O] [-P] [-S] envName

    Spew commands for spinning up projects

    positional arguments:
      envName

    options:
      -h, --help            show this help message and exit
      -V, --vmbool          Do we need to spinup a VM
      -O, --vmonlybool      Just the commands for VM
      -P, --printfunctionnamebool
                            Print the function names at the beginning of the
                            commands
      -S, --sbxbool         Is this a sandbox?

    c:\GITHUB\edm\Python>

Any ideas on what I should do, look into, debug?

Thanks in advance!

--
Galen Boyer