Oct 21, 2010 sshpass is a tool for non-interactivly performing password authentication with SSH's so called 'interactive keyboard password authentication'. Most users should use SSH's more secure public key authentication instead. Login to ssh server 192.168.1.10 with password called qaz123wsx: Under shell script you may need to disable host key checking.
In order to generate a SSH key on Debian, you are going to need the ssh-keygen tool. By default, ssh-keygen is already installed on Debian 10. To create a SSH key pair, use the following command. $ ssh-keygen -t rsa -b 4096 -C 'email protected' This ssh-keygen will take care of creating your key.
Install / Append SSH Key In A Remote Linux / UNIX Servers Authorizedkeys. Keychain is a special bash script designed to make key-based. Generate SSH Keys.
Server Fault is a question and answer site for system and network administrators. It only takes a minute to sign up. Bash script to create user then create ssh keys. Please note I am a total linux newbie, please bare that in mind when answering this question as I have very limited knowledge of linux.

How do I generate ssh keys under Linux / UNIX / Mac OS X and *BSD operating systems for remote login?

SSH keys are a way to identify trusted computers, without involving passwords. The steps below will walk you through generating an SSH key and adding the public key to the server. Step 1: Check for SSH Keys First, check for existing SSH keys on your computer. Open Git Bash, Cygwin, or Terminal, etc. SSH keys are a way to identify trusted computers, without involving passwords. The steps below will walk you through generating an SSH key and adding the public key to the server. Step 1: Check for SSH Keys First, check for existing SSH keys on your computer. Open Git Bash, Cygwin, or Terminal, etc.

SSH uses public-key cryptography to authenticate the remote computer and allow the remote computer to authenticate the user, if required. You can create ssh keys as follows on any Linux or UNIX-like operating systems including Mac OS X.[donotprint][/donotprint]

ssh-keygen command to Generate SSH Keys

The ssh-keygen command generates, manages and converts authentication keys for ssh client and server usage. Type the following command to generate ssh keys (open terminal and type the command):
$ ssh-keygen
Generate SSH keys looks as follows:

The above command creates ~/.ssh/ directory. So if your user name is vivek, than all files are stored in /home/vivek/.ssh/ or $HOME/.ssh/ directory as follows:

$HOME/.ssh/id_rsa – Your private key. Do not share this file with anyone. Keep it private
$HOME/.ssh/id_rsa.pub– Your public key.

Please note that the passphrase must be different from your current password and do not share keys or passphrase with anyone. Also, make sure you have correct and secure permissions on $HOME/.ssh/ directory:

SSH Keys Are Generated, What Next?

Bash Script Generate Ssh Key Github

You need to copy $HOME/.ssh/id_rsa.pub file to remote server so that you can login using keys instead of the password. Use any one of the following command to copy key to remote server called vpn22.nixcraft.net.in for vivek user:
ssh-copy-id vivek@vpn22.nixcraft.net.in
On some *nix system such as OS X ssh-copy-id command may not be installed, use the following commands (when prompted provide the password for remote user account called vivek) to install/append the public key on remote host:
ssh vivek@vpn22.nixcraft.net.in 'umask 077; mkdir .ssh' cat $HOME/.ssh/id_rsa.pub ssh vivek@vpn22.nixcraft.net.in 'cat >> .ssh/authorized_keys'
To login simply type:
ssh vivek@vpn22.nixcraft.net.in
The following command will help to remember passphrase
exec ssh-agent $SHELL ssh-add ssh vivek@vpn22.nixcraft.net.in

Generating Your SSH Public Key Many Git servers authenticate using SSH public keys. In order to provide a public key, each user in your system must generate one if they don’t already have one. Aug 22, 2017 You can generate and set up an SSH key for github so that you don't need to always type your username and password when you push. All you need. Dec 21, 2017 This tutorial defines you a clear cut way of configuring the gitbash with github by ssh keys, only by three commands. Where you install gitbash with developer defaults and generate ssh keys. Git windows generate ssh key. Generating Your SSH Public Key That being said, many Git servers authenticate using SSH public keys. In order to provide a public key, each user in your system must generate one if they don’t already have one.

Optional ssh-keygen command syntax for advance users

The following syntax specifies the 4096 of bits in the RSA key to creation (default 2048):
ssh-keygen -t rsa -b 4096 -f ~/.ssh/aws.key -C 'My AWs cloud key'
Where,

-t rsa : Specifies the type of key to create. The possible values are “rsa1” for protocol version 1 and “dsa”, “ecdsa”, “ed25519”, or “rsa” for protocol version 2.
-b 4096 : Specifies the number of bits in the key to create.
-f ~/.ssh/aws.key : Specifies the filename of the key file.
-C 'My AWs cloud key' : Set a new comment.

Now install the ~/.ssh/aws.key, run:
ssh-copy-id -i ~/.ssh/aws.key user@aws-server-ip
Test it with the ssh command:
ssh -i ~/.ssh/aws.key ec2-user@aws-server-ip
See “How To Set up SSH Keys on a Linux / Unix System” for more info.

Conclusion

You learned how to create and generate ssh keys using the ssh-keygen command.

Howto Linux / UNIX setup SSH with DSA public key authentication (password less login)
sshpass: Login To SSH Server / Provide SSH Password Using A Shell Script
keychain: Set Up Secure Passwordless SSH Access For Backup Scripts
Openssh man pages here
Man pages – ssh-keygen(1)

Start Cloud Shell

Launch Cloud Shell from the top navigation of the Azure portal.
Select a subscription to create a storage account and Microsoft Azure Files share.
Select 'Create storage'

Tip

You are automatically authenticated for Azure CLI in every session.

Select the Bash environment

Check that the environment drop-down from the left-hand side of shell window says Bash.

Set your subscription

List subscriptions you have access to.
Set your preferred subscription:

Tip

Your subscription will be remembered for future sessions using /home/<user>/.azure/azureProfile.json.

Create a resource group

Create a new resource group in WestUS named 'MyRG'.

Create a Linux VM

Create an Ubuntu VM in your new resource group. The Azure CLI will create SSH keys and set up the VM with them.

Note

Bash Script Generate Ssh Key Linux

Using --generate-ssh-keys instructs Azure CLI to create and set up public and private keys in your VM and $Home directory. By default keys are placed in Cloud Shell at /home/<user>/.ssh/id_rsa and /home/<user>/.ssh/id_rsa.pub. Your .ssh folder is persisted in your attached file share's 5-GB image used to persist $Home.

Your username on this VM will be your username used in Cloud Shell ($User@Azure:).

SSH into your Linux VM

Search for your VM name in the Azure portal search bar.
Click 'Connect' to get your VM name and public IP address.
SSH into your VM with the ssh cmd.

Upon establishing the SSH connection, you should see the Ubuntu welcome prompt.

Cleaning up

Exit your ssh session.
Delete your resource group and any resources within it.

Next steps

Learn about persisting files for Bash in Cloud Shell
Learn about Azure CLI
Learn about Azure Files storage