How to get SSH remote script capture output?

How to get SSH remote script capture output?

You need to declare the variable as local prior to running the command. local RESULTS RESULTS=$ (ssh user@server /usr/local/scripts/test_ping.sh) echo $?

How to execute SSH commands in multiple remote Linux machines?

There is are multiple ways to execute the commands or script in the multiple remote Linux machines. One simple & easiest way is via pssh (parallel ssh program) pssh: is a program for executing ssh in parallel on a number of hosts.

How to SSH to multiple machines at the same time?

The accepted answer sshes to machines sequentially. In case you want to ssh to multiple machines and run some long-running commands like scp concurrently on them, run the ssh command as a background process. Connect to remote machine using Expect Script.

How to write shell script for multiple machines?

Put this in your shell script: If you have multiple machines that you want to do the same command on you would repeat that line with a semi colon. For example, if you have two machines you would do this: Replace USER with the user of the computer. Replace HOST with the name of the computer.

How to capture SSH output as a variable in Bash?

But if you put >/dev/null second, stderr will first become a copy of the current stdout (the normal output stream), before stdout is redirected. So the command’s stderr prints to the tty (or the interpreter) as if it came from stdout, while stdout is silenced. This is the behaviour you want.

Why do I have backticks in my ssh command?

You have backticks in your command. That means they get run before the ssh command. Also, you are doing an assignment in your ssh command. You do not do anything with that assignment though. So, ssh probably assigns garbage to the startuptime variable that you never use.

Can You pipe a command to a local AWK?

You can then pipe that through your local awk and stuff to get what you want. If that works for you, you can then add in the rest of your commands. if you wanted to do further processing locally of that remove value. I agree with the suggestion that you should just get the uptime from the server and process that result locally.

Is there a way to trap the SSH error?

Actually, neither of the answers above traps the ssh error code and message, which could be done as follows (ignore my custom functions): Thanks for contributing an answer to Unix & Linux Stack Exchange! Please be sure to answer the question.

What do I need to write in command prompt for SSH?

Using the built-in command prompt (Windows) or terminal shell (Linux, macOS). You will need to write: ssh user@serverip. Remember to replace “ user ” with your real username and “ serverip ” with your server’s dedicated or shared IP address.

What do you need to know about SSH in Windows?

Using the built-in command prompt (Windows) or terminal shell (Linux, macOS). You will need to write: Remember to replace “ user ” with your real username and “ serverip ” with your server’s dedicated or shared IP address. Once you click the Open button on PuTTY or enter the command on the terminal, you will be prompted for a password.

What’s the best way to set up a SSH connection?

There are two recommended methods to establish an SSH connection: Using an SSH client (PuTTY). It will require you to enter the server’s IP and the port number into the corresponding fields. Using the built-in command prompt (Windows) or terminal shell (Linux, macOS).