mirror of
https://github.com/tstack/lnav
synced 2024-11-05 21:21:19 +00:00
13f5ad0dce
* This change removes the external dependency on OpenSSL, which should allow the code to compile on Mac OS X without specifying the MAC_OS_X_VERSION_MIN_REQUIRED non-sense. * Spookyhash should be faster than SHA-1's Merkle-Damgård construction. * Spookyhash is only 128-bits as opposed to SHA-1's 160-bits so memory consumption should be less. I doubt it will lead to too many collisions. * The docs are updated to reflect the fact that OpenSSL is not a dependency.
54 lines
1.6 KiB
ReStructuredText
54 lines
1.6 KiB
ReStructuredText
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Introduction
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============
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The Log File Navigator, **lnav**, is an enhanced log file viewer that
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takes advantage of any semantic information that can be gleaned from
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the files being viewed, such as timestamps and log levels. Using this
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extra semantic information, lnav can do things like interleaving
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messages from different files, generate histograms of messages over
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time, and providing hotkeys for navigating through the file. It is
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hoped that these features will allow the user to quickly and
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efficiently zero in on problems.
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Dependencies
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------------
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When compiling from source, the following dependencies are required:
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* `NCurses <http://www.gnu.org/s/ncurses/>`_
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* `PCRE <http://www.pcre.org>`_ -- Versions greater than 8.20 give better
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performance since the PCRE JIT will be leveraged.
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* `SQLite <http://www.sqlite.org>`_
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* `ZLib <http://wwww.zlib.net>`_
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* `Bzip2 <http://www.bzip.org>`_
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* `Readline <http://www.gnu.org/s/readline>`_
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Installation
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------------
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Check the `downloads page <http://lnav.org/downloads>`_ to see if there are
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packages for your operating system. Compiling from source is just a matter of
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doing::
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$ ./configure
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$ make
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$ sudo make install
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Viewing Logs
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------------
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The arguments to **lnav** are the log files or directories to be viewed.
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For example, to view all of the CUPS logs on your system::
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$ lnav /var/log/cups
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The formats of the logs are determined automatically and indexed on-the-fly.
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See :ref:`log-formats` for a listing of the predefined formats and how to
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define your own.
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If no arguments are given, **lnav** will try to open the syslog file on your
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system::
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$ lnav
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