From: Jean-Marc Monnez (monnez.jean-marc@AGORA.MSA.FR)
Date: Fri Jul 12 2002 - 04:02:07 EDT
I agree with Bill Thompson's suggestion of 'eval'. This way I should have done
it.
Another interesting possibility when you need user response is the use of
specific ksh statement 'select'.
For your example, it could be :
-----------------------------------------------------
#!/bin/ksh
PS3="Your choice number ? "
select var in "first var" "second var" "third var"
do
if [[ -n "$var" ]]
then
echo "User selected the ${var}iation"
break
fi
done
---------------------------------------------------------
Regards
-- JMM
Robert Bardos wrote :
> An easy one for most of you,
>
> given a piece of code like this:
>
> var_1="first var"
> var_2="second var"
> var_3="third var"
> read user_input
> # user enters "2"
> echo "User selected the ????iation"
> # expected result is: "User selected the second variation"
>
> Is there some kind of recursive variable resolution, ie. like
> $var_$user_input, that would resolve into the expected result and if yes,
> how would I have to code this?
>
> What book would you recommend for a beginner who wants to write some "more
> than trivial" shell scripts? (Or should I leave it at that and learn Pearl
> instead?)
>
> TIA
> Robert
>
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