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A process is a running instance of a program. Use this tag for how Emacs interacts with programs that it runs (compilers, viewers, network backends, etc.)

5 votes
1 answer
2k views

Differences between cmdproxy.exe and cmd.exe

What is the difference between: (call-process "cmdproxy" nil "foo" nil "/c" "dir") (call-process "cmd" nil "foo" nil "/c" "dir") ? …
antonio's user avatar
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8 votes
3 answers
2k views

Set environment variables for spawned subprocesses

In this example I try to unset HOME with: (defun f() (let ((old-home (getenv "HOME"))) (let* ((process-environment process-environment) (process-environment (setenv-internal process-environment … An alterative would be to use two setenvs before and after start-process. …
antonio's user avatar
  • 1,832
0 votes
0 answers
64 views

Running a single Emacs instance

I'd like to set in my dot-emacs a function to detect if an Emacs instance is already running, possibly exiting Emacs informing user. To do this I should query the OS for running processes. However ( …
antonio's user avatar
  • 1,832
5 votes
1 answer
1k views

Shell coding system

If, before M-x shell, I run C-x RET c (universal-coding-system-argument) I can change the coding system used by the shell. Therefore, given echo Straße > foo foo will be encoded in the related C …
antonio's user avatar
  • 1,832
2 votes
1 answer
391 views

Using ESS in console Emacs

Emacs becomes unrensponsive and I have to kill the process. …
antonio's user avatar
  • 1,832