What are the best commands and scripts to browse the ports collection from

the command line?
I've been using, make search key="xyz" and the script below to list the

DESCR files.
#!/bin/sh

# filename catdescr.sh

# usage: catdescr.sh directory letter

# "catdescr.sh security a"  will list the DESCR files

# of ports starting with the letter "a"

# in the /usr/ports/security directory
if [ ! $1 ]; then

 echo "usage: catdescr.sh ports_directory optionanl_letter";

 exit;

fi
for ff in /usr/ports/$1/$2*; do

 echo "****************************************";

 echo "**  $ff  **";

 echo "****************************************";

 cat $ff/pkg/DESCR;

 echo " ";

done