DragonFly On-Line Manual Pages

LNAV(1)                DragonFly General Commands Manual               LNAV(1)

NAME
       lnav - ncurses-based log file viewer

SYNOPSIS
       lnav [-hVsar] [logfile1 logfile2 ...]

DESCRIPTION
       The log file navigator, lnav, is an enhanced log file viewer that takes
       advantage of any semantic information that can be gleaned from the
       files being viewed, such as timestamps and log levels.  Using this
       extra semantic information, lnav can do things like interleaving
       messages from different files, generate histograms of messages over
       time, and providing hotkeys for navigating through the file.  It is
       hoped that these features will allow the user to quickly and
       efficiently zero in on problems.

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.

       -i     Install the given format files in the
              $HOME/.lnav/formats/installed directory and exit.

       -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.

       -d file
              Write debug messages to the given file.

       -V     Print version information.

       -a     Load all of the most recent log file types.

       -r     Load older rotated log files as well.

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

       -w file
              Write the contents of the standard input to this file.

   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.

EXAMPLES
       To load and follow the syslog file:

           lnav -s

       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@debian.org> for the Debian system (but may be used by others).

                                  August 2013                          LNAV(1)