Настраиваем бэкап коммутаторов через telnet на tftp сервер

#!/bin/bash
set -x
 
USER="логин коммутатора"
PASSWD="пароль"
LOG="telnnet_conn.log"
DATE=`date +%Y%m%d`
HOSTS=`cat ./ip`
SRV=`cat ./srv`
 
for H in $HOSTS
do
 
echo START SCRIPT:  >> $LOG
date +%x-%R >> $LOG
 
(
sleep 2;
echo -en "$USER\r";
sleep 2;
echo -en "$PASSWD\r";
sleep 2;
echo -en "upload cfg_toTFTP "$SRV" dest_file "$H"_$DATE.cfg\r";
sleep 7;
echo -en "logout\r";
sleep 2;
exit;
) | timeout 15s telnet $H >> $LOG
echo ================================== >> $LOG
done >/dev/null

172.31.4.2
172.31.4.3
172.31.4.4
172.31.4.5
172.31.4.6
172.31.4.7
172.31.4.8
172.31.4.9
172.31.4.10
172.31.4.11
172.31.4.12
172.31.4.13
172.31.4.14
172.31.4.15

172.31.4.1