#!/bin/bash

HTML=/var/www/test/ps.html
i=0
echo '<html><table><tr>' > $HTML

while read -r process; do

    if ! (( ++i % 8)); then
        echo "</tr><tr>" >> /var/www/testy/ps.html
    fi

    echo "<td>$process</td> >> $HTML

done < <(ps -ef)

echo '</tr></table></html>' >> $HTML