Bash scripting: how can I reference a variable?
 

Hi everyone,

I have some variables whose names I generated when going through the loop.

for i in `seq 1 10`
do
${i}_title=some_string
done

Now I want to make references to the ${i}_title variables in another loop. How do I do that? I guess my question is how to do nested references to a variable. Thanks.

The construct
${i}_title
can only be used to create a string value, not a variable name
You need to look at arrays tldp.org/LDP/abs/html/arrays.html

I thought about that. However, in my second loop I am going through another array. So, if I use array here, then I would have to loop through two arrays simultaneously, using the same index. This would be trivial in any other language but is it possible in bash?

EDIT: Sorry if this is confusing. I think I figured out how to get it working with arrays. Thanks

I think I figured out how to get it working with arrays.
Well, then share it with your fellow LQ members, or do you want to keep everything for yourself?

OK well in my first loop I am stepping through integers
1 through 11

Then, rather then generating title with

${i}_title=some_string

(which cannot later be referenced as a variable, so it's useless to me) I generate an array "title"
In my second loop I am stepping through members of a different array, which I also made to be integers (not necessarily consecutive).
This is convinient b/c now I can reference "title" array inside of this for loop: