Use ssh to login to your remote servers without using a password. Ask Ubuntu is a question and answer site for Ubuntu users and developers. Notify me via e-mail if anyone answers my comment. In this tutorial we covered different scenarios to automate SSH with password in shell scripts with different methods. # if file is not present and generate new agent PID, # Create the environment (if not present). So as long as this PID is running we can now SSH to our remote server without adding any passphrase. Expect is a really handy tool when it comes to automation where user input is expected. Shrawan Kumar Sahu (4 Replies) Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Hi All , I need to call a script runscript_B.sh on server A, the runscript_B.sh script locating in server B. This is definitely the most recommended method to use ssh if you want to automate the SSH process. The runscript_B.sh in calls another script runscript_A on server A itself. Note: In the example above, SSHPASS environment variable is for temporary purpose only and will be removed during reboot.. To permanently set the SSHPASS environment variable, open the /etc/profile file and type the export statement at the beginning of the file:. Physical explanation for a permanent rainbow, Recommendations for OR video channels (YouTube etc). Step1: Create a password file and type in your password as a clear text ( Not a Secure Method ) # Write the password into a file and Save it [ vagrant@mwivmapp01 ~]$ cat > .passwrdfile vagrant # Display the content of the file [ vagrant@mwivmapp01 ~]$ cat .passwrdfile vagrant. sshpass is a utility designed for running ssh using the mode referred to as "keyboard-interactive" password authentication, but in non-interactive mode. :wall:) Experts please help its very urgent. #... passphrase=$ (generate_password) ssh-keygen -t rsa -b 4096 -C $email -f $filename -N $passphrase -q ssh-add -q … To install sshpass, first make sure you have EPEL repo on your server. Now to automate this via a script we will create a ssh agent and bind it to the private key which we use while connecting to the remote server. Apple: How to add a script that types in the password for my vps through applescript?Helpful? #!/usr/bin/expect set user [lindex $argv 1] set ip [lindex $argv 0] set password [lindex $argv 2] spawn ssh $user@$ip expect "password" send "$password\r" interact … Automate SFTP using shell script with password (Using Expect) Now you can automate SFTP using shell script with password in combination with multiple third party tools such as expect or sshpass. After reading the password with the shell built-in read into a variable (in the below example, $pass), turn it back on with stty echo. Graphs: colouring vertex weights differently from vertices. There is no option for putting in a password, ie ssh-copy-id -p mypassword user@myserver . (want to make shell script), State of the Stack: a new quarterly update on community and product, Podcast 320: Covid vaccine websites are frustrating. So if security is not your concern you can use expect to ssh with password. How can I tell if all USB-C ports on a MacBook Pro are the same speed, or if one or more will be faster than others? I don't care about security and okay to store my password openly in the script. Hi Neo, Thanks for reply, ssh is not an issue here as we are .using pem key as authentication for ssh login which is working fine till that point no issue , script logging into ssh successfully(i broke my code for debug purpose so...ssh login is working fine) only issue is in sudo command..how to mention password along with sudo user name. read -p "Password please: " -s pass Alternatively, change the behavior of the terminal to hide typed characters with stty -echo (disable echo). The password prompt used by ssh is, however, currently hardcoded into sshpass. Once the SSH activity is completed we will kill the ssh agent. Connection to 192.168.43.10 closed. I have tryed like this in runscript_A.sh. But if the ssh agent was not created by our script then we leave it as it is. Step 1: … Is it feasible to circumnavigate the Earth in a sailplane? Identity added: /root/.ssh/id_rsa (root@server.example.com), [1] 16:34:13 [SUCCESS] 192.168.43.10 It will generate the passphrase, the SSH key using that passphrase, and add it to the agent. So now we can SSH to our target server 192.168.43.10 without any password. Below is a sample expect script which can use used to perform SSH and execute a command, the password is provided internally in the script: Let us execute the script and verify the output: You can find the same output in /var/log/ssh_tmp.log which we have defined as our log file in the script. How can I pass password in SSH command without using expect in a shell program. By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How can I set up password-less SSH login? Use ssh-keygen to generate a key pair with -P "" to provide an empty password, Now copy the public key to the remote node to which you wish to connect via SSH. Let's quickly install this rpm for the demonstration: In this example we provide a plain text password to sshpass which is highly insecure because any user with access to your server and history can see the password. Basically you use ssh-keygen (I think) to generate a public/private key pair.