ssh using shell script

An example 1:

#!/usr/bin/expect -f
set timeout 30 //<-- expect timeout spawn ssh user@host expect "*?assword:*" send -- "passwd\r" expect "user@host~>*” { send “command\r\r” }
interact timeout 20 //<-- pause expect "user@host~>*”
send “\r”
expect “user@host~>*”
exit 0

An example 2:

#!/usr/bin/expect -f
# Expect script to supply root/admin password for remote ssh server
# and execute command.
# This script needs three argument to(s) connect to remote server:
# password = Password of remote UNIX server, for root user.
# ipaddr = IP Addreess of remote UNIX server, no hostname
# scriptname = Path to remote script which will execute on remote server
# For example:
# ./sshlogin.exp password 192.168.1.11 who
# ————————————————————————
# Copyright (c) 2004 nixCraft project
# This script is licensed under GNU GPL version 2.0 or above
# ————————————————————————-
# This script is part of nixCraft shell script collection (NSSC)
# Visit http://bash.cyberciti.biz/ for more information.
# ———————————————————————-
# set Variables
set password [lrange $argv 0 0]
set ipaddr [lrange $argv 1 1]
set scriptname [lrange $argv 2 2]
set arg1 [lrange $argv 3 3]
set timeout -1
# now connect to remote UNIX box (ipaddr) with given script to execute
spawn ssh root@$ipaddr $scriptname $arg1
match_max 100000
# Look for passwod prompt
expect “*?assword:*”
# Send password aka $password
send — “$password\r”
# send blank line (\r) to make sure we get back to gui
send — “\r”
expect eof

ref: http://bash.cyberciti.biz/security/expect-ssh-login-script/

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