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LNAV(1)			    General Commands Manual		       LNAV(1)

NAME
       lnav - log file viewer for the terminal

SYNOPSIS
       lnav [options] [logfile1	logfile2 ...]

DESCRIPTION
       The  Logfile  Navigator,	 lnav,	is a log file viewer for the terminal.
       Given a set of files/directories, lnav will:

       - decompress as needed;

       - detect	their format;

       - merge the files together by time into a single	view;

       - tail the files, follow	renames, find new files	in directories;

       - build an index	of errors and warnings;

       - pretty-print JSON-lines.

KEY BINDINGS
       ?      View/leave the online help text.

       q      Quit the program.

OPTIONS
       -h     Print help and exit

       -H     Display the internal help	text.

       -I path
	      Add the given configuration directory to the search path.

       -W     Print warnings related to	lnav's configuration.

       -u     Update formats installed from git	repositories.

       -d file
	      Write debug messages to the given	file.

       -V     Print version information.

       -r     Recursively load files from the given directories.

       -R     Load older rotated log files as well.

       -c cmd Execute a	command	after the files	have been loaded.

       -f path
	      Execute the commands in the given	file.

       -e cmd Execute a	shell command-line.

       -t     Prepend timestamps to the	lines of data being  read  in  on  the
	      standard input.

       -n     Run without the curses UI.  (headless mode)

       -N     Do not open the default syslog file if no	files are given.

       -q     Quiet  mode.   Do	not print the log messages after executing all
	      of the commands.

   Optional arguments:
       logfile1
	      The log files or directories to view.  If	a directory is	given,
	      all of the files in the directory	will be	loaded.

MANAGEMENT-MODE	OPTIONS
       -i     Install  the  given  format files	in the $HOME/.lnav/formats/in-
	      stalled directory	and exit.

       -m     Switch to	the management command-line mode.  This	mode  is  used
	      to work with lnav's configuration.

       -C     Check  the configuration and exit.  The log format files will be
	      loaded and checked.  Any files given on the command-line will be
	      loaded checked to	make sure they match a log format.

EXAMPLES
       To load and follow the syslog file:

	   lnav

       To load all of the files	in /var/log:

	   lnav	/var/log

       To watch	the output of make with	timestamps prepended:

	   make	2>&1 | lnav -t

AUTHOR
       This manual  page  was  written	by  Salvatore  Bonaccorso  <carnil@de-
       bian.org> for the Debian	system (but may	be used	by others).

				  April	2024			       LNAV(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=lnav&sektion=1&manpath=FreeBSD+Ports+14.3.quarterly>

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