在bash脚本中使用emacs打开和关闭txt文件

Question

I wrote a script which opens several text files that I need during my work (eg journals etc.). The script looks like:

#! /bin/bash

DOCPATH=$HOME/Documents
NUMDOCPATH=$DOCPATH/Numerics

emacs $DOCPATH/UTA_WorkProtocol.txt &

emacs $NUMDOCPATH/NumProtocol.txt &

emacs $NUMDOCPATH/CITCOM/Protocol.txt &

That works fine and the files are opend properly. However, at the end I would like to create another script to save and close those files again. But, I haven't been able to find any commands to save and/or close open emacs files running in the background using a bash script. I would be more convenient to just run such a script instead of doing CX Cs in each txt file as I might be adding new files to the "opening"script as well.

Could any more experienced person help me with that, please. Thanks!

Answer 1

This is a bit of a hack, but bash scripts aren't really suited to this type of UI scripting.

#! /bin/bash

DOCPATH=$HOME/Documents
NUMDOCPATH=$DOCPATH/Numerics

emacs $DOCPATH/UTA_WorkProtocol.txt &
emacs $NUMDOCPATH/NumProtocol.txt &
emacs $NUMDOCPATH/CITCOM/Protocol.txt &

emacs   # *Not* in the background
kill $(jobs -p)

When you are ready to close all the backgrounded instances of emacs, just close the one that is in the foreground. This will cause the final emacs to exit, which will allow the script to continue to the kill command, which will kill the remaining background jobs.

Note that the final emacs could be any command that blocks the script from completing and can be easily killed itself.

Answer 2

Must you use bash ? It's easy in Emacs lisp :

(defun open-files ()
  (interactive)
  (find-file "UTA_WorkProtocol.txt")
  (find-file "NumProtocol.txt")
  (find-file "CITCOM/Protocol.txt"))

(defun close-files ()
  (interactive)
  (save-buffers-kill-emacs)

Then open a single instance of Emacs and run those commands in Mx .