lnav

lnav (The Logfile Navigator) is an advanced, terminal-based log file viewer that automatically merges, indexes, and analyzes logs from multiple sources.
It simplifies log management by providing features like real-time tailing, error highlighting, and structured data extraction, all within a single interactive interface.
Beyond basic viewing, lnav allows you to perform complex log analysis using SQL queries, making it a powerful alternative to standard tools like grep, tail, and less.