Bash Shell Scripting- Executing commands on remote server without logging into remote server

The video tutorial explains how to use SSH to log into remote servers and execute commands. It covers both manual and automated methods, including password and passwordless authentication. The tutorial also demonstrates how to store command outputs in variables or files and handle interactive commands. Finally, it shows how to execute multiple commands at once using SSH.

What are the two types of authentication environments mentioned for executing commands on a remote server using SSH?

• Password and passwordless authentication

• Biometric and token-based authentication

• Single-factor and multi-factor authentication

• Local and remote authentication

What is the purpose of the 'StrictHostKeyChecking' option in SSH?

• To log all SSH commands

• To encrypt the SSH session

• To automatically accept the server's fingerprint

• To enable passwordless login

Why is the first method of executing commands on a remote server not suitable for automation?

• It requires manual login each time

• It does not support password authentication

• It requires a graphical user interface

• It is only available for Linux servers

How can you store the output of a command executed on a remote server into a variable?

• By using the 'cat' command

• By using the 'scp' command

• By using parentheses around the command

• By using the 'echo' command

What is the difference between executing a command locally and on a remote server using SSH?

• Remote execution requires specifying a user and host

• Local execution requires a password

• Local execution is faster

• Remote execution does not return any output

How can you append the output of a command to an existing file on your local server?

• Using a double greater than symbol '>>'

• Using a semicolon ';'

• Using a pipe '|'

• Using a single greater than symbol '>'

What is a limitation of executing multiple commands on a remote server with SSH?

• You must provide a password for each command

• You cannot use interactive commands

• You can only execute one command at a time

• You cannot store the output of multiple commands

How can you execute multiple commands on a remote server in one SSH session?

• By separating commands with a semicolon ';'

• By separating commands with a comma ','

• By using a colon ':'

• By using a pipe '|'

What should you do if an interactive command like 'top' does not end the SSH session automatically?

• Use the 'exit' command

• Press 'Ctrl + C'

• Use the 'logout' command

• Press 'Ctrl + Z'

What happens to the output of a command executed on a remote server when stored in a variable?

• It is stored on the remote server

• It is stored in the variable on the local server

• It is not stored anywhere

• It is stored in a temporary file