[clue] bash/using variables in variable names

[Raymond DeRoo]

Mike:

export is your friend.

> OK, I am just thoroughly writer's blocked, probably missing something obvious; but who knows.  Anyway, here's my question
> 
> # node=somenode
> # echo $node
> somenode
> # somenodeVar=5   // if this works
> # echo $somenodeVar
> 5
> # $node"Var"=5 // why doesn't this work?
> bash: somenodeVar=5: command not found

[16:06:18 rderoo at daggoo ~]$ node=somenode
[16:07:03 rderoo at daggoo ~]$ echo $node
somenode
[16:07:49 rderoo at daggoo ~]$ export "${node}Var"=5
[16:07:57 rderoo at daggoo ~]$ echo $somenodeVar;
5
[16:07:58 rderoo at daggoo ~]$ echo $somenodeVar;


For the time being well skip the discussion on why variable variables are bad and that one should really be using arrays...

Kind Regards,
Raymond
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