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Re: bash doubt

by Javier Barroso-3 :: Rate this Message:

On Wed, May 14, 2008 at 3:05 AM, Jordi Gutiérrez Hermoso <jordigh@...> wrote:

On 13/05/2008, L. V. Gandhi <lvgandhi@...> wrote:
> I have a script as follows

[snip]
> i=$i+1
[snip]
> How to correct it

Your counter is wrong. $i + 1 means to treat i as a string and to
append the string "1" to it. If you want to do arithmetic in bash, you
have to put it inside brackets. i = $[i+1].

You should use i=$((i+1))

In man bash:
The old format $[expression] is deprecated and will be removed in upcoming versions of bash.

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