Welcome to lnav’s documentation!

The Log File Navigator (lnav) is an advanced log file viewer for the console. If you have a bunch of log files that you need to look through to find issues, lnav is the tool for you.

Contents:

• Introduction
  • Downloads
  • Viewing Logs
  • Setup
  • Development
• User Interface
  • Top Status Bar
  • Breadcrumb Bar
  • Configuration Panels
  • Bottom Status Bar
  • Prompt
  • Views
  • Mouse Support (v0.12.2+)
• Hotkey Reference
  • Global
  • Spatial Navigation
  • Chronological Navigation
  • Breadcrumb Navigation
  • Bookmarks
  • Display
  • Session
  • Query Prompts
  • Customizing
• Command Line Interface
  • File Viewing Mode
  • Management Mode (v0.11.0+)
  • Environment Variables
  • Examples
• Usage
  • Basic Controls
  • Viewing Files
  • Searching
  • Filtering
  • Search Tables
  • Taking Notes
  • Sharing Sessions With Others
• Cookbook
  • Log Formats
  • Annotating Logs
  • Log Analysis
• Configuration
  • Options
  • Theme Definitions
  • Keymap Definitions
  • Log Handling
  • Tuning
• Log Formats
  • Built-in Formats
  • Defining a New Format
  • Format Order When Scanning a File
  • Automatic File Conversion
• Sessions
• Commands
  • I/O Commands
  • Reference
• SQLite Interface
  • PRQL Support (v0.12.1+)
  • Log Tables
  • Extensions
  • Commands
  • Variables
  • Environment
  • Collators
  • Reference
• SQLite Tables Reference
  • environ
  • fstat(<path|pattern>)
  • lnav_events
  • lnav_file
  • lnav_file_metadata
  • lnav_user_notifications
  • lnav_views
  • lnav_views_echo
  • lnav_view_files
  • lnav_view_stack
  • lnav_view_filters
  • lnav_view_filter_stats
  • lnav_view_filters_and_stats
  • all_logs
  • http_status_codes
  • regexp_capture(<string>, <regex>)
• Events (v0.11.0+)
  • Trigger Example
  • Reference
• Extracting Data
  • Recognized Data Types
• How It Works
  • Internal Architecture
• Frequently Asked Questions
  • Q: How can I copy & paste without decorations?
  • Q: How can I force a format for a file?
  • Q: How can I search backwards, like pressing ? in less?
  • Q: Why isn’t my log file highlighted correctly?
  • Q: Why isn’t a file being displayed?

Indices and tables

• Index

• Module Index

• Search Page