On Oct 11, 2011, at 10:35 AM, Marius Hofert wrote: > > On 2011-10-11, at 16:19 , Simon Urbanek wrote: > >> >> On Oct 11, 2011, at 6:24 AM, Marius Hofert wrote: >> >>> Hi, >>> >>> I have multiple R versions installed and would like to switch between them >>> via setting the symblic link "Current". To make this a bit more convenient, >>> I defined two "aliases" in .bashrc: >>> >>> alias R2.13='d=/Library/Frameworks/R.framework/Versions; rm $d/Current; ln >>> -s $d/2.13 $d/Current' >>> alias R2.14='d=/Library/Frameworks/R.framework/Versions; rm $d/Current; ln >>> -s $d/2.14 $d/Current' >>> >> >> Try >> >> ln -sfn 2.13 /Library/Frameworks/R.framework/Versions/Current >> > > Dear Simon, > > thanks, I put it in the alias. It now looks like this: > alias R2.13='d=/Library/Frameworks/R.framework/Versions; rm $d/Current; ln > -sfn $d/2.13 $d/Current' > (and similarly for R 2.14) > > >> You'll need to be admin of the computer, otherwise you'll need sudo > > If I execute (in a new shell, as usual) R2.13, I (still) get: > > bash-3.2$ R2.13 > rm: /Library/Frameworks/R.framework/Versions/Current: Permission denied > ln: /Library/Frameworks/R.framework/Versions/Current: Permission denied > > So the obvious would be to "sudo R2.13", but I obtain: > > bash-3.2$ sudo R2.13 > Password: > sudo: R2.13: command not found > >> or change permissions. Note that for symlinks you'll need extra -h in chown >> otherwise you're changing ownership of the target not the link. > > This I also realized :-) I tried that: > sudo chown -h myuser /Library/Frameworks/R.framework/Versions/Current > > bash-3.2$ ls -al > total 8 > drwxrwxr-x 5 root wheel 170 Oct 11 15:54 . > drwxrwxr-x 9 root wheel 306 Oct 11 11:38 .. > drwxrwxr-x 8 root wheel 272 Oct 11 12:16 2.13 > drwxrwxr-x 6 root wheel 204 Oct 11 11:38 2.14 > lrwxr-xr-x 1 myuser wheel 45 Oct 11 15:54 Current -> > /Library/Frameworks/R.framework/Versions/2.13 > bash-3.2$ >
You permissions are odd - this is not what installed R looks like, you should see ginaz:Versions$ ls -l total 8 drwxrwxr-x 6 root admin 204 Mar 26 2010 2.12 drwxrwxr-x 6 root admin 204 Jul 12 15:44 2.13 drwxrwxr-x 6 root admin 204 Oct 2 11:01 2.14 drwxrwxr-x 6 root admin 204 Oct 3 12:05 2.15 lrwxr-xr-x 1 root admin 4 Oct 3 12:05 Current -> 2.15 so run chown -Rh root:admin /Library/Frameworks/R.framework/ followed by to fix that. Cheers, Simon > => okay, root was changed to myuser, that's good. But again, I get > > bash-3.2$ R2.13 > rm: /Library/Frameworks/R.framework/Versions/Current: Permission denied > ln: /Library/Frameworks/R.framework/Versions/Current: Permission denied > > > >> If in doubt (ie., you messed with permissions before), run sudo chmod g+w -R >> /Library/Frameworks/R.framework > > okay, thanks a lot, that's good to know. > >> >> Cheers, >> Simon >> >> >>> On executing R2.13 in the terminal, I get: >>> rm: /Library/Frameworks/R.framework/Versions/Current: Permission denied >>> ln: /Library/Frameworks/R.framework/Versions/Current/2.13: Permission denied >>> >>> If I chown Current, I still get: >>> rm: /Library/Frameworks/R.framework/Versions/Current: Permission denied >>> >>> I (bad) solution is to put in "sudo" in the alias... >>> >>> How is it done correctly? >>> >>> Cheers, >>> >>> Marius >>> >>> PS: I also posted it for future reference, I've only found the idea of >>> using ln -s on the help pages/FAQ, but not how to get around the permission >>> issue. >>> _______________________________________________ >>> R-SIG-Mac mailing list >>> R-SIG-Mac@r-project.org >>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac >>> >>> >> > > ETH Zurich > Dr. Marius Hofert > RiskLab, Department of Mathematics > HG E 65.2 > Rämistrasse 101 > 8092 Zurich > Switzerland > > Phone +41 44 632 2423 > marius.hof...@math.ethz.ch > http://www.math.ethz.ch/~hofertj > > _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac