The below is a snippet from a script I I had put together to find any pkgs or mpkgs in a set folder and install them with a while loop (not a for loop), and also move the completed package to another folder if the install was successful (so it wouldn't keep trying to install it over and over again) or just exit if it encounter and error.

You'd have to set your variables for the $PathtoPKG and $DoneF (done folder), but this worked OK for me in testing.

find "$PathtoPKG" -maxdepth 1 -name *.mpkg -or -name *.pkg | while read file; do

    /usr/sbin/installer -pkg "$file" -allow -target /

    ## If install was successful, move the package to a done folder

    if [[ $? == 0 ]]; then

        sleep 2

        mv "$file" "$DoneF"

        ## If install failed, exit out of the script  (You could also have it skip that install and move on to the next)

        else echo "Installation for $file failed"

        exit 1

    fi

done

thanks very much that is great