#!/bin/sh

# list directories in path $1
f_dls () {
   ls -l $1|egrep "^d"|awk '{print $9}'
}

ifdir="/etc/pf"
ifs=$(f_dls $ifdir)

echo "Enter name of source interface:"
echo "$ifs"
echo -n ">"
read if_src
echo "Enter name of destination interface:"
echo -n ">"
read if_dst
echo -n "Copying $if_src to $if_dst...ctrl-c to abort."
read

ifdir_src=$ifdir/$if_src
ifdir_dst=$ifdir/$if_dst

cp -R $ifdir_src $ifdir_dst

for file in $(find $ifdir_dst -type f); do
  if [ $(fgrep -c $if_src $file) != 0 ]; then
    sed "s/$if_src/$if_dst/g" $file>/tmp/$if_src.tmp
    mv /tmp/$if_src.tmp $file
  fi
done