Re: delete elements from an array...

[Chris F.A. Johnson]

On Tue, 10 Mar 2009, OnTheEdge wrote:

> I'm having a problem getting this to work. I'm currently doing this using a
> file instead of an array, but it is too slow. Here's what I'm trying to do:
>
> For each record in my main array (array1), I want to get a match out of
> array2 and append it to the array1 record. After I get the match, I want to
> delete that record from array2.
>
> For example, array2 looks something like this:
> Ohio Columbus
> Ohio Cleveland
> Texas Dallas
> Texas Austin
>
> I want to find the first occurrence of 'Ohio' and append Ohio and Columbus
> to the array1 record. Then I want to remove the 'Ohio Columbus' record from
> the array so I don't pick it up the next time I search on Ohio.

match=${1:-Ohio}
n=0
while [ $n -lt ${#array2[@]} ]
do
  case ${array2[$n]} in
    *"$match"*)
         array1[${#array1[@]}]=${array2[$n]}
         unset array2[n]
         break
         ;;
  esac
  n=$(( $n + 1 ))
done

printf "%s\n" "${array2[@]}"
echo
printf "%s\n" "${array1[@]}"

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   Chris F.A. Johnson, webmaster         <http://woodbine-gerrard.com>
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