Combining bash and CMD in Linux under Windows 10

Question

I'm using the Linux subsystem under Windows 10.

If I have, for example, a PowerPoint file called x.pptx, I can request the Linux bash shell to request Windows to open the file with the default application. The following command will do the trick:

/mnt/c/Windows/System32/cmd.exe /C start x.pptx

But if the file name contains a space (for example, x y.pptx) I can't get it to work. I think I have tried every possible combination of single quotes, double quotes and backslashes.

Is what I want to do even possible?

EDIT

Here are my attempts:

Using x\ y.pptx or "x y.pptx" or 'x y.pptx' or \"x y.pptx\" simply causes the CMD window to open.

Using '"x y.pptx"' causes Windows to say that it cannot find y.pptx\ (the missing x and the backslash are not typos).

Using '\"x y.pptx\"' causes Windows to say that it cannot find y.pptx\\\ (sic).

have you tried with absolute path? is x y...in current working directory? start has also /D option to specify directory — Nahuel Fouilleul
– Nahuel Fouilleul, Commented Mar 12, 2018 at 8:57
@NahuelFouilleul, yes I have tried with the absolute path. Yes, x y.pptx is in the current working directory. Adding the /D option doesn't seem to help. — oz1cz
– oz1cz, Commented Mar 12, 2018 at 9:04
trying various start commands in cmd shows the same result using title seems to be a workaround — Nahuel Fouilleul
– Nahuel Fouilleul, Commented Mar 12, 2018 at 9:05

Nahuel Fouilleul · Accepted Answer · 2018-03-12 09:20:40Z

1

it seems the reason comes from start command:

from start /?, it seems the first quoted string is used as title, giving a title seems to be a workaround

start "title" "x y.pptx"

and launching from bash

/mnt/c/Windows/System32/cmd.exe /C start '"title"' 'x y.pptx'

edited Mar 12, 2018 at 9:20

answered Mar 12, 2018 at 9:04

Nahuel Fouilleul

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3 Comments

oz1cz Over a year ago

It doesn't work for me. I just get a CMD window with a title of "x y.pptx". (The start "title" "x y.pptx" works nicely when executed directly in CMD, but I can't get it to work from bash.)

Nahuel Fouilleul Over a year ago

because bash quoting, updating answer

oz1cz Over a year ago

Nahuel, your edit doesn't work, but this does: /mnt/c/Windows/System32/cmd.exe /C start '"title"' 'x y.pptx'.

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