--- a/.emacs-my	Thu Jan 26 17:28:12 2017 +0200
+++ b/.emacs-my	Thu Jan 26 17:33:34 2017 +0200
@@ -3375,6 +3375,8 @@
 (defun my/sh-company-setup ()
   (make-local-variable 'company-backends)
   (setq company-backends '((company-capf company-files company-dabbrev-code)))
+  (make-local-variable 'company-dabbrev-code-other-buffers)
+  (setq company-dabbrev-code-other-buffers t)
   (company-mode 1))
 
 (when (featurep 'company)