tldr/pages/linux/lnav.md

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lnav

Advanced log file viewer to analyze logs with little to no setup. More information: https://docs.lnav.org/en/latest/cli.html.

  • View logs of a program, specifying log files, directories or URLs:

lnav {{path/to/log_or_directory|url}}

  • View logs of a specific remote host (SSH passwordless login required):

lnav {{ssh}} {{user}}@{{host1.example.com}}:{{/var/log/syslog.log}}

  • Validate the format of log files against the configuration and report any errors:

lnav -C {{path/to/log_directory}}