since ☆
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Description:
Stateful tail: show changes to files since last check
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: monitoring logging command-line utility file-system
Install: brew install since
About:
Since is a command-line utility that monitors files for changes and displays new content added since the last time it was checked. It maintains state between runs, acting like a stateful version of the tail command. This allows users to easily track and view updates in log files or other continuously updated data sources.
Key Features:
  • Stateful tracking of file changes across executions
  • Displays only new content since the last check
  • Simple command-line interface similar to tail
  • Useful for monitoring log files and data streams
Use Cases:
  • Monitoring application log files for new errors or entries
  • Tracking changes in data files processed by batch jobs
  • Watching for updates in development or system logs
Alternatives:
  • tail -f – Standard tail -f shows all new output but does not remember the last position between sessions
  • multitail – More complex tool for monitoring multiple files with advanced features like colors and buffering
Version History
Detected Version Rev Change Commit
Sep 15, 2025 10:15am 0 VERSION_BUMP 2f5f7e0f
Nov 27, 2022 1:43am 0 VERSION_BUMP 33bd74f4
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