#!/bin/bash
[ $# != 1 ] && echo "parameter tmpfile missing!" && exit
tmpfile=$1

# bind babel-socket to FD3
exec 3<>/dev/tcp/::1/33123

# read and write data
cat <&3 > "$tmpfile" &

# write "dump" to sock
echo dump >&3

# Wait a moment and close FD3
sleep 0.1
exec 3<&-

# and clean up
pkill -P $$