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Category: CLI

Syntax Tree – Ruby formatter and syntax tree toolkit

October 4, 2026 Steve Emms CLI, Programming

Syntax Tree is a parser and formatting toolkit with command-line formatting, syntax inspection, searching, mutation and language server support.

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Arid – fast duplicate-code checker for Python

October 4, 2026 Steve Emms CLI, Programming

Arid is a fast duplicate-code checker for Python projects written in Rust, with configurable analysis, baselines and CI-friendly reports.

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DNSViz – analyse and visualise DNS and DNSSEC behaviour

October 3, 2026 Steve Emms CLI, Internet

DNSViz analyses DNS and DNSSEC behaviour, captures query data, assesses problems, and generates textual or graphical reports.

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goimports-reviser – Sort and Format Go Imports

October 3, 2026 Steve Emms CLI, Programming

goimports-reviser sorts Go imports into configurable groups, removes unused imports, manages aliases, and can also format source code.

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SQL

MySQL Shell – advanced client and administration console

October 3, 2026 Steve Emms CLI, Database, Documents

MySQL Shell is an advanced MySQL client with SQL, JavaScript and Python modes, administration APIs, migration, backup and upgrade tools.

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Encrypted Files

20 Best Free and Open Source Linux CLI File Encryption Tools

October 3, 2026 Steve Emms CLI, Roundup, Security

This roundup explores the finest CLI-based file encryption tools.

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Server

flatpak-builder – build application bundles from source manifests

October 3, 2026 Steve Emms CLI, Utilities

flatpak-builder automates source retrieval, builds and manifest-driven packaging, with reproducible workflows for sandboxed Linux apps.

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Zonemaster-CLI – command-line DNS zone testing utility

October 3, 2026 Steve Emms CLI, Internet

Zonemaster-CLI runs comprehensive DNS configuration tests from the command line with graded findings and structured output.

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Image of Files

33 Best Free and Open Source Command Line Navigation Tools

October 3, 2026 Steve Emms CLI, Roundup, Utilities

Tiny but useful tools that complement the cd command. Free and open source goodness.

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Chemistry

Quantum ESPRESSO – electronic-structure and materials modelling suite

October 2, 2026 Steve Emms CLI, Scientific

Quantum ESPRESSO is a suite for electronic-structure calculations and materials modelling using density-functional theory, plane waves and pseudopotentials.

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DNS-collector – DNS telemetry collection and processing tool

October 2, 2026 Steve Emms CLI, Internet

DNS-collector captures, filters, enriches and routes DNS telemetry to monitoring, analytics and security platforms on Linux.

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Chemistry

OpenMD – molecular dynamics simulation engine

October 2, 2026 Steve Emms CLI, Scientific

OpenMD is a molecular dynamics engine for simulating liquids, proteins, nanoparticles, interfaces and systems with orientational degrees of freedom.

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gocondense – Condense Go Source Code

October 2, 2026 Steve Emms CLI, Programming

gocondense reformats Go source by condensing eligible multi-line constructs, removing redundant syntax, and preserving comments.

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Images

20 Best Free and Open Source Command-Line Image Compression Tools

October 2, 2026 Steve Emms CLI, Graphics, Roundup

This article recommends the best command-line image compression tools. They are all free and open source.

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sloglint – enforce consistent log/slog code style

October 2, 2026 Steve Emms CLI, Programming

sloglint checks Go code using log/slog for consistent logging style, covering messages, arguments, keys, context use and custom functions.

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Flamethrower – DNS performance and functional testing utility

October 2, 2026 Steve Emms CLI, Internet

Flamethrower is a fast DNS testing utility for benchmarking and stress testing servers over UDP, TCP, DoT and DoH on Linux.

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Chemistry

OpenMolcas – multiconfigurational quantum chemistry package

October 2, 2026 Steve Emms CLI, Scientific

OpenMolcas is a quantum chemistry package centred on multiconfigurational electronic-structure methods including CASSCF and CASPT2.

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godoc-lint – linter for consistent Go documentation

October 1, 2026 Steve Emms CLI, Programming

godoc-lint checks Go documentation against consistent comment practices, with configurable rules and integration with Golangci-lint.

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golines – Shorten Long Lines in Go Source Code

October 1, 2026 Steve Emms CLI, Programming

golines is a Go formatter that shortens long source lines, supports configurable limits, dry runs, and custom base formatters.

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Chemistry

MOPAC – semiempirical quantum chemistry package

October 1, 2026 Steve Emms CLI, Scientific

MOPAC is a semiempirical quantum chemistry package for fast molecular and materials calculations, geometry optimisation and reaction studies.

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