Description:
Command-line tool which executes commands on remote servers
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Type: Formula
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Tracked Since: Dec 28, 2025
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Links:
Homepage |
formulae.brew.sh
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Category: Devops
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Tags:
automation
devops
remote-execution
sysadmin
orchestration
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Install:
brew install rex
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About:
Rex is a remote execution tool that brings the power of configuration management to the command line. It allows you to orchestrate commands and tasks across multiple servers simultaneously using a simple Perl-based syntax. This tool simplifies server administration by providing a unified interface for deployment, configuration, and maintenance tasks.
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Key Features:
- Agentless architecture requiring only SSH access
- Perl-based DSL for writing automation tasks
- Parallel execution across multiple servers
- Built-in resource abstraction for common operations
- Extensible with custom modules and recipes
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Use Cases:
- Automating deployment workflows across server fleets
- Running system updates and security patches simultaneously
- Collecting inventory data and system information from hosts
- Orchestrating complex multi-server application configurations
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Alternatives:
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Ansible
– More popular with YAML syntax but requires Python on targets
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Fabric
– Python-based, simpler but less feature-rich for complex orchestration
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Chef
– More complex agent-based architecture with steeper learning curve
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