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I would like to launch Emacs by typing a command line in the terminal in Ubuntu linux. I want Emacs to open file a.txt in one frame and another file b.txt in another frame. I tried the command *emacs a.txt -f make-frame-command b.txt* Unfortunately this command does not work. It launches one frame with a split buffer containing a.txt and b.txt and another frame with just a.txt

  • you can execute some elisp code to do that : emacs --eval "(progn (find-file \"a.txt\")(find-file-other-frame \"b.txt\") ". – gigiair Feb 15 at 16:34
  • Unfortunately that proposed code does not work at all. It simply opens a single un-named buffer in emacs – Vikram Feb 15 at 18:25
  • I just missed the last parenthesis. Try : emacs --eval "(progn(find-file \"a.txt\")(find-file-other-frame \"b.txt\"))". Shame on me... – gigiair Feb 15 at 19:51
  • thank you - it now works perfectly! Is there a way of passing a variable for the file name to the command? I'd like to put this command in my .bashrc file and open a.txt and b.pdf where a and b are variable names specified by me. – Vikram Feb 15 at 20:20
  • fA="a.txt";fB="b.txt";emacs --eval "(progn(find-file \"$fA\")(find-file-other-frame \"$fB\"))" – gigiair Feb 15 at 22:08
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Any valid elisp code can be executed when starting Emacs with the --eval option. For instance

 emacs --eval "(progn(find-file \"a.txt\")(find-file-other-frame \"b.txt\"))"

or

emacs --eval "(find-file \"a.txt\")" --eval "(find-file-other-frame \"b.txt\")"

do the trick.

The first --eval command is unnecessary, you can just type

emacs a.txt --eval "(find-file-other-frame \"b.txt\")"
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