shmux ☆

« Back to VersTracker

Description:
Execute the same command on many hosts in parallel

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Devops

Tags: ssh parallel automation sysadmin remote-execution devops

Install: brew install shmux

About:
Shmux is a command-line tool designed to execute the same command across multiple remote hosts simultaneously. It leverages SSH connections in parallel to significantly speed up administrative tasks and deployments. The tool provides interactive output and handles connection failures gracefully, making it ideal for managing large server fleets.

Key Features:

Parallel execution across multiple hosts via SSH
Interactive, color-coded output for easy monitoring
Automatic handling of connection failures and timeouts
Support for host groups and dynamic host lists
Detailed logging and result reporting

Use Cases:

Deploying code updates or configuration changes across production servers
Gathering system metrics (e.g., disk usage, load) from an entire cluster
Running emergency security patches or scripts on multiple machines at once

Alternatives:

Ansible – More powerful and idempotent, but heavier and requires more setup
PDSH – Lighter and simpler, but lacks Shmux's interactive output and robust error handling
Parallel SSH (pssh) – Similar parallel execution, but Shmux offers a more user-friendly interactive interface

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 10:23am		0	VERSION_BUMP	7f6677e0
Sep 14, 2024 6:29pm		0	VERSION_BUMP	001ff13e