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.
- -d file
- Write debug messages to the given file.
- -V
- Print version information.
- -s
- Load the most recent syslog messages file.
- -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).