Re: Problems with for loops

[Oliver Kiddle <opk@xxxxxxxxxxxxx>]

Allen Belk wrote:
> 
> This is my test script:
> 
> #!/bin/zsh
> ((i = 0))
> for (( i -eq 0; i -le 10; i++ )) do echo "$i\n" done
> 
> When I execute this script, I get the following
> 
> ./array_test.zsh: parse error near `(( i -eq 0' [3]

Try using:

for ((i=0;i<=10;i++)) do echo "$i\n"; done

See the section on Arithmetic Evaluation in the manual. Anything inside
(( ... )) is dealt with as a math expression so you use != == <= >= for
comparisons and = (and others like +=) for assignment. There is a full
list in the manual. You would use things like -eq and -le in a Condition
Expression (which is the following section of the manual). These are
introduced with [[ ... ]] and are more useful when doing operations on
strings, filenames etc.

Oliver Kiddle



> I know this is likely a newbie question but I have struggled with it for 3
> days.  Any help will be greatly appreciated.
> 
> Thank you,
> 
> Allen Belk
> 
>  | Allen Belk, Systems Manager
>  | Office of Technology Resources
>  | University of Southern Mississippi
>  | allen.belk@xxxxxxx  601.266.6013