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When I call gcalcli from the bash shell, I get the output described in the documentation. But when I run M-x shell on emacs (24.3) and call gcalcli from there, I get a lot of ^[ characters. Compare screenshots from the shell and from emacs.

enter image description here enter image description here

My init.el already contains the following lines, which are supposed to help with this.

(add-hook 'comint-output-filter-functions
          'comint-output-ctrl-m)

I don't really have a problem with calling gcalcli from the shell whenever I need it. I just want to understand why emacs uses non-printing characters here and how to suppress them if I want to.

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  • Try doing M-x ansi-color-for-comint-mode-on RET in the shell buffer
    – Iqbal Ansari
    Sep 9, 2015 at 15:28
  • Nope, doesn't make a difference.
    – Koldito
    Sep 9, 2015 at 17:21

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