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How to concatenate a string and a variable

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# 1  
Old 10-24-2008
How to concatenate a string and a variable
I need a way to build variable in this manner:

variable_$i
Inside a for loop i need to create it.
where i goes from 1 to 30..
and then i need to print them on screen with echo $variable_$i
which is the best way to do this?
# 2  
Old 10-24-2008
echo ${variable}_${i}

curly braces are used to emphesize the actual name of the variable, usually it's not necessary but sometimes a bit confusing constructions are used,
This User Gave Thanks to togr For This Post:
# 3  
Old 10-24-2008
An example:

Code:
#!/bin/sh

variable=AA
i=1

while [ i -le 30 ]; do
  echo ${variable}_${i}
  let i=i+1
done

Regards
# 4  
Old 10-24-2008
Thanks for your reply.
How can i assign a value to this variable
${variable}_${i}="somestring" is it work?
# 5  
Old 10-24-2008
thread moved to "Shell Programming and Scripting". please watch out to post in the right sub forum!
# 6  
Old 10-24-2008
Quote:
Originally Posted by sreedivia
Thanks for your reply.
How can i assign a value to this variable
${variable}_${i}="somestring" is it work?
The way to learn scripting/programming or whatever is to do it yourself, just try it out......

Regards
# 7  
Old 10-26-2008
Quote:
Originally Posted by sreedivia
Thanks for your reply.
How can i assign a value to this variable
${variable}_${i}="somestring" is it work?
this is not a one single variables. these are two distinct variables.
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