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yeswanth
Asked: 2019-11-21 23:21:49 +0800 CST

How to pass std input while logging into remote server through script

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While logging into my remote server it expects a user input, it's bash_profile is modified in such a way.

[nikhil]$ cat .bash_profile
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi
read -p "enter your name " Name
echo $Name

How can i login into this remote server using ssh and pass that input through script.

scripts command-line ssh bash bashrc

1 Answers

  1. Install expect: 

    apt-get install expect

    Run following script:

    $ expect <<EOF
set timeout -1

spawn ssh -o "StrictHostKeyChecking=no" root@server

expect "root@server's password:"
send -- "12345678PASSWORD\r"
expect "enter your name "
send -- "susan\r"
expect "root@server"
send -- "echo $$\r"
send -- "exit\r"
expect eof
EOF

    Adapt following:

    • root@server with your actual server connection parameters
    • obviously the password
    • the name you want to provide to the script inside .bash_profile on the target server
    • the actual command you want to run on the target server (instead of echo $$)
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