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Bttf is a command line datetime Swiss army knife
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Overview
bttf is a command line tool for datetime arithmetic, parsing, formatting, and more. It is dual-licensed under MIT or the UNLICENSE and provides a user guide for understanding its features and functionalities.
Summary from github.com.
Reports
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Community reactions
Each reaction summarizes sampled comments from the linked discussion.
Hacker News · github.com
Historical count: 5 · 5 saved in sample · Historical sample
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Read this discussion’s reaction
Based on 5 sampled comments from this thread. Analyzed 2026-05-28.
- Praise: Bttf offers a unique solution for datetime manipulation on the command line, showcasing its versatility in handling complex use cases.
- Praise: The author shared a compelling example of Bttf's capabilities, highlighting its potential to simplify tasks that are otherwise cumbersome.
- Praise: Community members appreciate the tool's functionality, with comments expressing excitement about its practical applications in daily workflows.
- Praise: The tool's design encourages exploration of command line possibilities, helping users enhance their proficiency and productivity.
- Concern: There are concerns about the default locale settings not being user-friendly, which could hinder accessibility for some users.
- Concern: Some users expressed frustration with the name collision between Bttf and the traditional 'biff' command, which could lead to confusion.