lnav – Log File Navigator

The Log File Navigator

Watch and analyze your log files from a terminal with lnav http://lnav.org/ for Linux and Mac. Just like CCZE https://ausinfotech.net/blog/colorize-log-files-with-ccze-tool/ lnav can produce easy readable logs in colour and also highlight important parts of the logs.

Some Features:

Single Log View
All log file contents are merged into a single view based on message timestamps. You no longer need to manually correlate timestamps across multiple windows or figure out the order in which to view rotated log files. The color bars on the left-hand side help to show which file a message belongs to.

Automatic Log Format Detection
The following formats are built in by default:

  • Common Web Access Log format
  • CUPS page_log
  • Syslog
  • Glog
  • VMware ESXi/vCenter Logs
  • dpkg.log
  • uwsgi
  • “Generic” – Any message that starts with a timestamp
  • Strace
  • sudo

Installation:

See http://lnav.org/downloads for details and/or in Linux Debian/Ubuntu run:

 sudo apt install lnav 

Example:

 

 

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