WSL 2: wsl --shutdown accepts extra cmdline arguments

[swarren]

wsl --shutdown is the entire legal command according to wsl --help. However, if I actually type wsl --shutdown Ubuntu (i.e. when I get confused about which of --shutdown and --terminate is which), no error is issued. There should be an error, because Ubuntu is not an expected parameter to --shutdown.

Put another way. Actual behaviour:

c:\> wsl --shutdown foo
c:\> 

Expected behaviour:

c:\> wsl --shutdown foo
Error: Unknown argument "foo"
c:\> 

(No doubt this is happening because other cmdline options in wsl allow launching an arbitrary command within the WSL VM. However, --shutdown doesn't allow this, so shouldn't accept the meaningless/unused command argument.)

Windows build number: 10.0.18985.1

[therealkenc]

so shouldn't accept the meaningless/unused command argument

That's pretty normal

$ gcc --version foo
gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

No error on superfluous foo argument.

[swarren]

I think the fact gcc has the same issue doesn't mean it isn't a bug. Admittedly, --version and --help often do have this quirk, but it's rare for other options in my experience.

[Biswa96]

shutdown option does not accept any argument. It kills all running Lx session. Try that option with running WSL1 and WSL2 distribution simultaneously.