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Adam Spiers dc500774a8 fix -Wsign-compare warnings in lnav_commands.cc
Fixes these warnings:

    lnav_commands.cc: In function ‘std::string remaining_args(const string&, const std::vector<std::basic_string<char> >&, size_t)’:
    lnav_commands.cc:67:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int lpc = 0; lpc < index; lpc++) {
                                 ^
    lnav_commands.cc: In function ‘std::string com_save_to(std::string, std::vector<std::basic_string<char> >&)’:
    lnav_commands.cc:574:53: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int lpc = 0; lpc < dls.text_line_count(); lpc++) {
2016-11-22 19:42:41 +00:00
docs Add Ctrl-W display shortcut for word-wrap. 2016-11-07 17:39:02 +11:00
example-scripts [scripts] add an example script dir 2014-04-05 22:36:48 -07:00
m4 [secure-mode] Disallow ATTACH statements completely. 2016-05-04 20:21:01 -07:00
release [release] some more work on the release build 2016-08-06 15:23:23 -07:00
src fix -Wsign-compare warnings in lnav_commands.cc 2016-11-22 19:42:41 +00:00
test [build] package logfile_epoch.1 2016-11-22 10:02:38 -08:00
.gitignore add some compile-time artefacts to .gitignore 2016-11-19 14:35:43 +00:00
.travis.yml turn off coverity 2015-09-20 20:58:39 -07:00
appveyor.yml Add cygwin continuous integration through appveyor 2016-05-31 10:18:37 -03:00
AUTHORS [misc] Update the AUTHORS and NEWS file. 2015-05-11 23:31:59 -07:00
autogen.sh [autogen] More fixes. 2015-04-06 00:07:07 -07:00
CMakeLists.txt [coverity] some cleanup and add the chunky_index 2014-09-28 22:36:07 -07:00
configure.ac fix compile on SUSE 2016-11-19 15:00:27 +00:00
INSTALL first commit 2009-09-13 18:07:32 -07:00
LICENSE add license 2010-01-16 20:54:22 -08:00
lnav.1 [format] try to validate formats against a given file 2015-07-11 16:32:48 -07:00
lnav.cfg [cleanup] uncrustify 2013-06-15 18:07:50 -07:00
Makefile.am [release] add a log generator for demo purposes 2014-03-21 21:18:54 -07:00
NEWS [format] allow json log fields to be hidden 2016-10-29 06:52:12 -07:00
README [nav] add "opid" support with a hotkey 2015-11-24 20:59:24 -08:00
README.md Update README.md 2016-06-04 12:52:32 -07:00
TESTS_ENVIRONMENT.in [cmd] replace wordexp with shlex 2015-12-25 12:03:44 -08:00

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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.

Cygwin users

It should compile fine in Cygwin.

Alternatively, you can get the generated binary from AppVeyor artifacts.

Remember that you still need the lnav dependencies under Cygwin, here is a quick way to do it:

setup-x86_64.exe -q -P libpcre1 -P libpcrecpp0 -P libsqlite3_0 -P libstdc++6

Currently, the x64 version seems to be working better than the x86 one.

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.

Screenshot

See Also

The lnav website can be found at:

http://lnav.org