knife:tldr:3fd70

The command "knife node show ${node_name}" is used in Chef, the configuration management tool, to retrieve and display detailed information about a specific node.

Here's how to break it down:

• "knife": This is the CLI tool used to interact with the Chef server from the workstation.
• "node": This refers to a specific node or server that is managed by Chef.
• "show": This is the subcommand used to display information about the node.
• "${node_name}": This is a placeholder that should be replaced with the actual name of the node you want to view information about.

When you run this command, Chef will query the server and retrieve details about the specified node. This information typically includes attributes, roles, run list, environment, IP address, and other metadata associated with the node. The output will be displayed in the terminal or command prompt window.