I just changed my default notebook context to 'unique to this Notebook' so that variables don't roll across numerous open notebooks. Doing this, however, made the command ClearAll["Global*"] stop working to clear all declared variables. I also tried, ClearAll[Evaluate[Context[] <> "*"]], but that didn't work either. Any ideas?


2 Answers 2


As soon as you set your notebook context to 'unique to this Notebook', the notebook's context is no longer Global`, but, well, unique to the notebook.

I can't test right now, but assuming you are not in an explicitly opened context (like after Begin or BeginPackage), I think the following should work:


At least it works in a kernel with manually changed $Context.

  • $\begingroup$ It works, so +1. $\endgroup$
    – rcollyer
    Commented May 30, 2013 at 19:02
  • $\begingroup$ Awesome, totally works! Any ideas why variables aren't going back to blue (from black)? $\endgroup$ Commented May 30, 2013 at 19:38
  • $\begingroup$ @zhermes: I have no idea. IIRC the variables actually already start out being black when the notebook uses its own context (can't check now); no idea why. Maybe the colouring algorithm doesn't take the different context into account correctly. $\endgroup$
    – celtschk
    Commented May 30, 2013 at 19:47
  • 4
    $\begingroup$ I think you could just do ClearAll@"`*"... $\endgroup$
    – rm -rf
    Commented May 31, 2013 at 3:21

I think instead of ClearAll["Global`*"], you can just Clear["`*"]. This should work.


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