Shell script

Salve Salve senhores...

Preciso da ajuda de vcs, fiz um script de backup por ftp e preciso fazer um for com um address list dos ips dos servidores, quem pode me ajudar sou novo em shell scrip.
O script esta OK

#!/bin/sh
#########################################################
# Script de Backup #
# Developed by DANILO RAMOS DA SILVA #
# #
# Security #
# Perdoes MG #
# 10-02-2007 #
#######################################################
echo "SCRIPT DE BACKUP SENDO REALIZADO"
# espere por segundos
sleep 5

echo " -- Conectando ao servidor FTP ..."
HOST='192.168.1.2'
USER='backup'
PASSWD='password'
FILE= nome_do_arquivo
ftp -n $HOST <<END_SCRIPT
quote user $USER
quote PASS $PASSWD
get $FILE
quit
END_SCRIPT
echo " -- Fim do Backup ..."