lnav is a powerful and versatile log file viewer designed to make analyzing log data as simple as possible. It provides a text-based interface for viewing and filtering log files, and it has several advanced features for searching, highlighting, and summarizing log data.
lnav supports a wide range of log file formats and provides an easy-to-use interface for analyzing log data, making it an essential tool for system administrators and developers who work with log files on a regular basis. It also provides the ability to aggregate logs from multiple sources, and its built-in script support makes it easy to automate log analysis tasks.
lnav Command Examples
1. View logs of a program, specifying log files, directories or URLs:
# lnav path/to/log_or_directory|url
2. View logs of a specific remote host (SSH passwordless login required):
# lnav ssh email@example.com:/var/log/syslog.log
3. Validate the format of log files against the configuration and report any errors:
# lnav -C path/to/log_directory