Re: tramp and shell, problem on windows 7

[Michael Albinus]

Shuguang Sun <shuguang@gmail.com> writes:

> Hi all,

Hi,

> Windows7,
> GNU Emacs 27.0.50 (build 1, x86_64-w64-mingw32) of 2017-10-21

I don't use Windows myself, so I can guess only.

> - Problem 1: tramp and dired-do-shell-command:  start: Unknown job: /b
> Why "start /b" is called remote side?

Internally, `shell-command' will be called. This uses `shell-file-name'
and `shell-command-switch'. I suppose, both variables are set to "start"
and "/b", respectively, in your environment.

> When I run tramp (plink) and go to a remote buffer (dired mode), run
> dired-do-shell-command (!) on marked file (for example, R CMD BATCH * &).
> It popup the buffer of * Async Shell Command *, and the command is not run
> but a message "start: Unknown job: /b" which looks it runs the windows-like
> command "start /b ..." on the remote shell.

You will be served better if you set `explicit-shell-file-name' to a
proper value, for example "/bin/sh". See the discussion in the Emacs
manual, node "Interactive Subshell".

> - Problem 2: tramp and shell: env: c:/bin/ : No such file or directory
> where "c:/" comes?
>
> In a tramp dried buffer, call shell which suppose to raise the shell buffer
> on remote server. However, I got error messge in the * shell * buffer that
> "env: c:/bin/ : No such file or directory". I don't know where the "c:/"
> comes from. When shell is called, it reads the remote path in the minibufer
> with promotes
> "/plink:user@host:/path/to/dired/C:/Users/username/emacs/libexec/emacs/27.0.50/x86_64-w64-mingw32/cmdproxy.exe",
> and I change it to "/plink:user@host:/bin/", and then I got error message
> above. Below is the tracking:

This I cannot answer (yet). Try the setting above, and let's see what's
happening.

> Best Regards,
> Shuguang Sun

Best regards, Michael.