Asterisk 1.6 using dahdi

In autoconfig-buttons-freepbx.sh, the following code is supposed to be checking for dahdi trunks, it executes a "zap show channels" command. Zap show channels will report it as "no such command". It should be "dahdi show channels" - I've bolded the error.

DAHDI=`asterisk -rx "zap show channels" | grep -v from-internal | grep -v pseudo | grep -v Language | awk '{print $1}' | head -n 1`
if [ "X${DAHDI}" != "X" ]; then
echo
echo "[DAHDI/$DAHDI]"
echo "type=trunk"
echo "label=DAHDI"
asterisk -rx "zap show channels" | grep -v from-internal | grep -v pseudo | grep -v Language | awk '{print $1}' | tail -n +2 | while read LINEA
do
echo "channel=DAHDI/$LINEA"
done

Also to configure the Dahdi channels for extensions, the MySQL database for zap must be parsed. Add the following after the IAX extensions:

# DAHDI EXTENSIONS
mysql -ENB -u $DBUSER -p$DBPASS -h $DBHOST $DBNAME -e "select concat('DAHDI/',extension) as channel,extension,name as label,s1.data as mailbox,s2.data as context,concat('*',s1.data) as extenvoicemail from users as u left join zap as s1 on u.extension=s1.id and s1.keyword='mailbox' left join zap as s2 on u.extension=s2.id where s2.keyword='context' order by extension" | sed '/\*\*/d' | sed 's/: /=/g' | while read LINEA
do
echo $LINEA | sed 's/channel=\(.*\)/\n[\1]\ntype=extension/g'
done