BetterWatch - Enhanced Watch Utility

• Improved version of Unix watch command with smart process handling
• Background execution prevents screen blinking on updates
• Diff highlighting shows changes between command outputs
• Graceful handling of slow processes (20+ seconds timeout)
• Execution time display for performance monitoring
• Clean signal handling for proper shutdown

Key Features

• No Flicker - Background execution with seamless updates
• Diff Mode - Highlight changes between outputs with -d flag
• Slow Process Support - Handles commands taking 20+ seconds gracefully
• Timing Display - Shows execution time for each run
• Clean Shutdown - Proper signal handling (SIGINT/SIGTERM)
• Error Handling - Displays command failures without crashing

Implementation

• Single file architecture (main.go) for simplicity
• Concurrent command execution with goroutines
• Terminal clearing and cursor management
• POSIX-compliant argument parsing
• Minimal dependency (only golang.org/x/term)

See also

• p/moul/draft-better-tools
• p/moul/golang