problems calling matlab from command line in OS X

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Robert 2011-8-22

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Hi. I installed Matlab 2011a before removing 2009a. After the installation '$which matlab' pointed to /usr/bin/matlab, which called 2009a.

Now I've removed 2009a (just deleted it from Applications) and '$which matlab' is blank.

'$ls /usr/bin/matlab' shows a file, but Finder doesn't see it when I navigate to /usr/bin/.

How do I get '$matlab' to call 2011a?

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Robert 2011-8-22

Thanks Kelly and Daniel. ls -l showed that /usr/bin/matlab pointed to the deleted 2009a version.

Daniel's advice worked. Here are the exact commands I used, in case someone else has this problem:

$ sudo rm /usr/bin/matlab

$ sudo ln -s /Applications/MATLAB_R2011a.app/bin/matlab /usr/bin/matlab

Of course, you'll likely have to modify the path(s) above.

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Answer 1

Daniel Shub 2011-8-22

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在 MATLAB Online 中打开

I am a Linux user and sometimes there are odd differences between Linux and Mac, but you should be able to just recreate the symbolic link. From the command line as a privileged user you would want to do something like:

ln -s /usr/local/matlab/r2011a/bin/matlab /usr/bin/matlab

with /usr/local/matlab/r2011a/bin/matlab tailored to be your install directory.

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Answer 2

Kelly Kearney 2011-8-22

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The /usr/bin/matlab file should be a symbolic link; do an ls -l to see where it's pointing (should point to <matlabroot >/bin/matlab). In my experience this link always updates to the most recently installed version of Matlab (I never uninstall my previous versions), though it would seem something went wrong on your most recent install.

Can't recall whether Finder shows symbolic links by default or not... they show up in mine, but I may have altered preferences for this.

You might want to try reinstalling the new version of Matlab, and see if the link resurrects itself. Not sure if manually creating it (via ln) would do more harm than good.