pssh:tldr:f474a
pssh: Run a command on multiple hosts, specified in a new-line separated file.
$ pssh -i -h ${path-to-hosts_file} ${hostname -i}
try on your machine
The given command is using the "pssh" tool to perform a distributed SSH operation on multiple hosts.
Here is a breakdown of the command:
- pssh: It is the command-line tool that allows running commands on multiple remote hosts simultaneously.
- -i: The "-i" option enables interactive mode, allowing you to input commands to be executed on the remote hosts.
- -h ${path-to-hosts_file}: The "-h" option specifies the path to a file that contains a list of hostnames or IP addresses of the remote hosts you want to connect to. This file is typically a plain text file with one hostname or IP address per line.
- ${hostname -i}: It seems there is a small error in the command. "${hostname -i}" should be replaced with "$(hostname -i)" or "$(hostname -I)". This part of the command will execute the "hostname -i" command locally and retrieve the IP address of the current machine to be used in the SSH connection.
To summarize, this command will connect to a list of hosts specified in a file and execute commands interactively (-i) using the pssh tool. Additionally, the local machine's IP address will be used in the SSH connection.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.