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MathGroup Archive 1995

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$Path, init.m on NeXT

  • To: mathgroup at christensen.cybernetics.net
  • Subject: [mg1142] $Path, init.m on NeXT
  • From: Preston Nichols <pdn at godel.math.cmu.edu>
  • Date: Wed, 17 May 1995 04:29:22 -0400

I use Mathematica on a NeXT, and I solved this problem by just  
creating a text file called init.m in my home directory.  It  
contains, among other things, the following line:

$Path = Join[$Path, {"~/Library/Mathematica/Packages"}]

Everything in ~/init.m is executed every time I launch Mathematica  
(when logged in under the username corresponding to the home  
directory in question).  You can let the second argument of Join be  
any list of strings (note the quote marks), one string for each  
directory path you want Mathematica to search for packages.

(It took me quite a while to realize that I could just create my  
own "personal" init.m, despite the presence of  
/LocalApps/Mathematica22.app/StartUp/init.m, or whatever.  They  
don't interfere with each other in any way I have yet detected.)

This leaves all the default search paths intact in each session (so  
standard packages load properly) and also avoids tampering with  
sysinit.m, which is probably a good general policy (or a necessity,  
if you can't log in as root).

Preston Nichols
Department of Mathematics
Carnegie Mellon University


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