du is a standard program used to estimate file space usage—space used under a particular directory or files on a file system. We recommend alternative commands to du.
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Category: CLI
29 Useful Free and Open Source Git Tools for Diff Review and Repository History
Free Git tools for clearer diffs, code review, history analysis, merge handling and repository maintenance.
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VCell – modeling and simulation framework
VCell is a modeling and simulation framework for computational cell biology.
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8 Best Free and Open Source Linux Personal Finance Trackers
Managing personal finances does not have to mean handing over bank details to a hosted service or wrestling with a complex accounting suite.
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30 Best Free and Open Source Terminal-Based Task Managers
A task manager is software which enables users to compile a list of tasks to be completed. This list is also known as a to-do list.
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Elementary – dbt-native data observability command-line tool
Elementary is a dbt-native data observability command-line tool for analytics and data engineering teams.
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COPASI – biochemical systems simulator
COPASI is a biochemical systems simulator for building, simulating, and analyzing models of biochemical networks and their dynamics.
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Soda Core – data quality and data contract verification engine
Soda Core is a data quality and data contract verification engine for modern data stacks.
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footty – command-line tool for querying football.db
footty is a CLI tool for querying football.db, an open football database covering national and international football leagues and cups.
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Claudinho – follow the World Cup from the terminal
Claudinho is a command-line tool for following the 2026 World Cup from a terminal, Claude Code statusline, or MCP client.
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emd – command line memory acquisition tool for Linux systems
emd is a tool designed to dump physical memory using an eBPF filter, providing a way to capture system memory.
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32 Delightful Free and Open Source ASCII Art Tools
ASCII art is a graphic design technique that relies primarily on computers for presentation and consists of pictures.
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csvlens – command-line CSV file viewer
csvlens is a command-line CSV file viewer that works like less, but is designed specifically for tabular data.
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8 Best Free and Open Source Console Based Network ‘top’ Tools
We recommend the best network ‘top’ tools.
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20 Best Free and Open Source Terminal-Based YouTube Tools
Funky developers have created applications that allow you to bypass the web-only barrier of YouTube. Here’s our recommended terminal-based YouTube tools.
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asak – terminal audio tool
asak is a terminal audio tool that provides a keyboard-driven interface for working with audio files.
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ani-l – terminal-based anime library and streamer
ani-l lets users browse, search, and stream anime directly from the terminal, with a TUI or command-line options.
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Sealed Secrets – one-way encrypted secrets
Sealed Secrets is a Kubernetes security tool that lets you encrypt Secret manifests into SealedSecret resources.
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Helius Personal Finance Tracker – Rust CLI/TUI
Helius Personal Finance Tracker is a local-first personal finance application built around a Rust command-line interface and full-screen terminal user interface.
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28 Best Free and Open Source Terminal-Based Diff Tools
File comparison compares the contents of computer files, finding their common contents and their differences. The result is known as a diff.
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