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Suresh Sundriyal f476f904db [syslog_log] Case-insensitive search for level strings While looking through syslog messages on OS X, came across plenty of error/warning messages where the level was in all-caps and as a result were not recognized. There was also a lot of false positives due to the word error turning up as part of a longer string. This change: - Changes the log level regex to do a case-insensitive search. - Ognores the string 'error', if it is part of a longer string.		2015-05-31 22:47:39 -07:00
docs	[docs] update docs for horizontal move change	2015-05-12 06:37:41 -07:00
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README.md

This is the source repository for lnav, visit http://lnav.org 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.

Prerequisites

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.

Installation

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

$ ./configure
$ make
$ sudo make install

Run ./autogen.sh before running any of the above commands when compiling from a cloned repository.

Using

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*

Screenshot

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