Automate password based ssh login using expect

 Install the expect package

#yum list expect

//this package is available in my redhat repo

#yum install expect

//given yes

//whenever we used expect in script make sure the shebang should be the expect like below

this is not /bin/bash script it an separate bash so we have to specify in #! like below

#!/usr/bin/expect -f

as well the script should not save as .sh 

it need to be create a file name without .sh

#vi examplescript

//and the exectution mention 

expect examplescript

or

#./examplescript

to find the location

# which expect

/bin/expect

//script

#!/usr/bin/expect -f

spawn ssh root@10.10.10.10 hostname

expect "password"

send "Welcome@1234\r"

interact

//exectuion

# expect stat

spawn ssh root@10.10.10.10 hostname

root@10.10.10.10's password:

ansiblehost

or

#chmod +x stat

#./stat

---------------------------

execute shell script insise expect

#vi stat

#!/usr/bin/expect -f

spawn /bin/bash /home/ec2-user/stat.sh

#exec /home/ec2-user/stat.sh

expect "password"

send "Welcome@1234\r"

interact