So I'm using VOTCA version 1.2.4 on a cluster where the bash version is 
3.2.51.
If I run the command in my shell :
 step_nr=1; scheme=( 0 0 1 ); echo $(( ( $step_nr - 1 ) % ${#scheme[@]} )) 
I get 0 as an output (as expected)

If I run the propane example I get the same error.

The grep command for the propane/imc example gives the following:
Update potential A-A : no
Update potential B-B : no
Update potential A-B : no

David



Am Dienstag, 18. August 2015 23:13:16 UTC+2 schrieb Christoph Junghans:
>
> 2015-08-18 4:15 GMT-06:00 David Rosenberger <[email protected] 
> <javascript:>>: 
> > Dear VOTCA developers and users, 
> > 
> > I have tried to run IMC for a binary mixture 
> > with update cycles. But instead of a cycle, no update is performed. 
> > In the inverse.log file it is written: 
> > /share/votca/scripts/inverse/imc_purify.sh: line 41: scheme: bad array 
> > subscript 
> > 
> > Here is the part of the .xml file where I have defined the cycles 
> > 
> >       <target>Ar-Ar_rdf.xvg</target> 
> >       <!-- update cycles --> 
> >       <do_potential>1 0 0</do_potential> 
> >       <post_update>smooth</post_update> 
> >       <post_update_options> 
> >       <smooth> 
> >       <iterations>2</iterations> 
> >       </smooth> 
> >       </post_update_options> 
> > 
> > For the other interactions it looks similar, just the order is changed 
> from 
> > 1 0 0 to 0 1 0 respectively to 0 0 1. 
> > So in principle I just followed the tutorial for propane, which gives 
> the 
> > same error. 
> > 
> > Hope somebody can help me. 
> I cannot reproduce this issue. 
>
> What version of VOTCA are you using? (csg_call --version) 
> And what version of bash have you installed? (bash --version) 
> Can you try running the following command in your bash shell? 
> step_nr=1; scheme=( 0 0 1 ); echo $(( ( $step_nr - 1 ) % ${#scheme[@]} )) 
> (this is basically line 41 from imc_purify.sh) See if it works! 
>
> Do the propane/imc example work for you? 
> Can you check the log file? (grep Update.potential inverse.log) 
>
> Christoph 
>
> > 
> > Best regards, 
> > David 
> > 
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>
>
>
> -- 
> Christoph Junghans 
> Web: http://www.compphys.de 
>

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