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Log file navigator
branch: master
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docs [version] some more version updates
example-scripts [scripts] add an example script dir
release [version] some more version updates
src fix ptime_b_slow, again...
test missing test file
.gitignore [build] automate building the linux static binary
.travis.yml fix ptime_b_slow, again...
AUTHORS [format] add TCF file format and some fixes to make it work
CMakeLists.txt [coverity] some cleanup and add the chunky_index
INSTALL first commit
LICENSE add license [release] add a log generator for demo purposes
NEWS update NEWS
README Change the code to use Spookyhash. [README] Add a pointer to at the top [jsonptr] initial impl
aclocal.m4 ignore bad json lines first commit
ax_sqlite3.m4 [build] fix os x build issues
ax_with_curses.m4 [win build] fix curses autoconf stuff
compile [version] bump the version to 0.6.0
config.guess [misc] fix the access log format for user names; update config.guess/…
config.sub [misc] fix the access log format for user names; update config.guess/…
configure [version] some more version updates bump version to 0.7.2
depcomp first commit
install-sh first commit
lnav.1 [formats] add a "-i" flag to make it easier to install formats
lnav.cfg [cleanup] uncrustify
lnav.m4 [build] fix os x build issues
missing [build] fix
mkinstalldirs first commit
test-driver [build] add test-driver file

Build Status

This is the source repository for lnav, visit for a high level overview.

LNAV -- The Logfile Navigator

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.


Lnav requires the following software packages:

  • libpcre - The Perl Compatible Regular Expression (PCRE) library.
  • sqlite - The SQLite database engine.
  • ncurses - The ncurses text UI library.
  • readline - The readline line editing library.
  • zlib - The zlib compression library.
  • bz2 - The bzip2 compression library.


Lnav follows the usual GNU style for configuring and installing software:

$ ./configure
$ make
$ sudo make install


The only file installed is the executable, "lnav". You can execute it with no arguments to view the default set of files:

$ lnav

You can view all the syslog messages by running:

$ lnav /var/log/messages*


The following screenshot shows a syslog file. Log lines are displayed with highlights. Errors are red and warnings are yellow.


See Also

The lnav website can be found at:

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