unsh

unsh is a command-line utility that facilitates the execution of arbitrary commands and scripts on a remote machine. It leverages SSH for secure communication and authentication. The primary purpose of unsh is to streamline the process of running commands without requiring interactive SSH sessions, making it suitable for automation and scripting.

To use unsh, a user typically specifies the target host, the command to execute, and potentially authentication credentials like a private key. The unsh utility then establishes an SSH connection to the remote host, transmits the command, and receives the standard output and standard error from the executed command. This output is then displayed to the user on the local machine.

Key features of unsh often include support for various SSH authentication methods, including password-based and key-based authentication. It can also handle passing arguments to the remote command and redirecting input or output. The utility is designed to be lightweight and efficient, minimizing overhead associated with establishing and managing SSH connections. It is particularly useful for system administration tasks, deployment scripts, and continuous integration/continuous deployment (CI/CD) pipelines where repetitive remote command execution is common. The simplicity of its interface makes it accessible to users familiar with basic command-line operations and SSH.