systeroid – powerful alternative to sysctl

systeroid is a Linux utility for inspecting and modifying kernel parameters at runtime. It offers a more informative and convenient alternative to sysctl, with both a conventional command-line interface and an interactive terminal interface.

The application works with kernel parameters exposed through the procfs virtual filesystem, particularly the files under /proc/sys. These settings control aspects of kernel behaviour including networking, memory management, filesystem limits and security.

Unlike sysctl, systeroid can provide explanations of individual parameters using locally available Linux kernel documentation. This makes it particularly useful when investigating unfamiliar settings or learning how different kernel options affect the system.

The command-line interface supports familiar sysctl operations while adding more flexible searching and output formats. Parameters can be examined individually, searched by regular expression or displayed in a hierarchical structure.

The interactive interface provides another way to navigate kernel settings. Users can browse categories, inspect values and make changes without repeatedly entering commands.

Changes made to runtime kernel parameters do not automatically survive a reboot unless they are also saved through the system’s persistent configuration mechanisms.

This is free and open source software.

Key Features

• Read and modify Linux kernel parameters exposed through procfs.
• Provide both command-line and interactive terminal interfaces.
• List parameters in a hierarchical tree structure.
• Export kernel parameter information as JSON.
• Search parameter names using regular expressions.
• Filter parameters by kernel subsystem.
• Display detailed explanations from Linux kernel documentation.
• Cache parsed kernel documentation for faster subsequent access.
• Load kernel settings from configuration files.
• Process system-wide kernel parameter configuration directories.
• Display parameter names, values or both.
• Interactively edit and save parameter values.
• Copy parameter information to the clipboard.
• Customise terminal interface colours and refresh behaviour.
• Configure output formatting, logging and pager integration.

Website: github.com/orhun/systeroid
Support:
Developer: Orhun Parmaksız
License: Apache License 2.0 or MIT License

systeroid is written in Rust. Learn Rust with our recommended free books and free tutorials.

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