Clarify commands usage in dotnet-dump analyze help

[richlander]

I want to do the following:

./dotnet-dump analyze dump.dmp -c "eeheap -gc" --exit | grep Number of GC Heaps

That doesn't appear possible. It would be very powerful.

[mikem8361]

You can do this:

 dotnet-dump analyze symboltestapp.3.1.17.coredump -c "eeheap -gc" -c "exit" | grep "Number of GC Heaps"

[richlander]

Nice!!!! Thanks much.

[danmoseley]

@mikem8361 could you clarify the -? help here then as neither of us figured this out?

It does say [default: System.String[]] but I didn't know what that meant.

Eg, something like

-c, --command <command> Run the command on start. Can be repeated to run a sequence of commands.

[richlander]

I was confused by that, too.

[mikem8361]

That is System.CommandLine's way of indicating that multiple -c comands can be parsed. It is very unclear but maybe it has gotten better in newer versions.

@jonsequitur, we are currently on version 2.0.0-beta1.20468.1 of System.CommandLine. Has this improved?

[hoyosjs]

We can, at the very least, modify the help text.