#!/bin/sh
FORM_freq=`cat ./state/freq`
FORM_freq=`echo "$FORM_freq - 1000" | bc`
FORM_volume=`cat ./state/volume`
FORM_filter=`cat ./state/filter`
echo $FORM_freq > /var/www/cgi-bin/state/freq
echo $FORM_freq > /var/www/cgi-bin/commands/chfreq
echo Content-type: text/html
echo
echo '<html>'
echo '<head>'
echo '<meta http-equiv="refresh" content="0;url=/index.php">'
echo '</head>'
echo '<body>'
echo freq is $FORM_freq, volume $FORM_volume '<br><br>'
echo '</body>'
echo '</html>'