Re: [Help-bash] populating an array with piped output in a loop

[Greg Wooledge]

On Mon, Nov 28, 2011 at 05:55:56PM -0600, Dallas Clement wrote:
>       grep "^disk[0-9]*=" /etc/diskinfo |
>       while read LINE;
>       do
>               DISKS[${COUNTER}]=`echo ${LINE}|sed -e "s/.*=//"`
>               DISKS_NAME[${COUNTER}]=`echo ${LINE}|sed -e "s/=.*//"`
>               COUNTER=$((${COUNTER} + 1))
>       done
> 
> What is the best way to populate an array with the contents of a file
> when you need to transform each line read from the file?

Convert the pipeline into a process substitution:

while read -r line; do
    disks[counter]=${line##*=}
    disks_name[counter]=${line%%=*}
    counter=$((counter+1))
done < <(grep "^disk[0-9]*=" /etc/diskinfo)