How about a Perl solution? 

perl -le'print eval shift'

[download]
Or, to slurp all arguments: 
perl -le'print eval "@ARGV"'

[download]

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W5kIHBhY2soKS4gQnV0IGRvIHlvdS
ByZWNvZ25pc2UgQmFzZTY0IHdoZW4
geW91IHNlZSBpdD8gIC0tIEp1ZXJk

In reply to Re: Re: Re: •Re: Re: Simple command line calculator by Juerd
in thread Simple command line calculator by vladb

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