[Chimera-users] multiple Chimera windows on Mac

Elaine Meng meng at cgl.ucsf.edu
Thu Oct 30 09:21:35 PDT 2008

On Oct 30, 2008, at 8:07 AM, Chin-Hsien (Emily) Tai wrote:
> One quick question, is there any way to have several sessions of  
> Chimera running at the same time so that we can compare/rotate  
> different domain parsing results of the same structure at the same  
> time?

Hi Emily,
I assume you are using a Mac...

Yes, you can have multiple Chimera instances, as many as you want, if  
you start Chimera from the Terminal window.  For example, I have  
Chimera version 1.2540 installed as /Applications/Chimera2540, so to  
start it from Terminal I would type:


Actually I don't really type that because it is too troublesome, and  
instead have an alias in my home directory .tcshrc file (or .cshrc  
file).  If you don't have either of these files you can just create a  
file by that name in your home directory and put the alias in it, in  
my case:

alias chimera /Applications/Chimera2540.app/Contents/MacOS/chimera

Then after you source that file or log in again, simply typing  
"chimera" (or whatever you used as the alias) starts Chimera.  In a  
second Terminal window, you can enter "chimera" for a second running  
Chimera, etc.  I have multiple different Chimera versions with  
different aliases, for example, a recent daily build is on my Desktop:

alias chinew ~/Desktop/Chimera.app/Contents/MacOS/chimera

Even if you have only one version, you can start it as many times as  
you want from different Terminal windows.
I hope this helps,
Elaine C. Meng, Ph.D.                          meng at cgl.ucsf.edu
UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

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