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Parse, merge, and filter syslog files

Project description

# logdissect logdissect is a tool for gaining insight into syslog files. It can merge multiple log files together and sort by timestamp, and filter the results by time range and other criteria. Files that end in .gz or .bz2 are ignored.

# INSTALLING See the latest instructions on the [releases page](https://github.com/dogoncouch/logdissect/releases).

# OPTIONS

Usage: logdissect [options] <files>

—version show program’s version number and exit -h, –help show this help message and exit –list-parsers returns a list of available parsers –list-morphers returns a list of available morphers –list-outputs returns a list of available output formats -p PARSER specifies parser to use (default: syslog) -s silences terminal output -v sets verbose terminal output

Morph options: –grep=PATTERN specifies a pattern to match –last=LAST specifies preceeding time period (5m/3h/2d/etc) –range=RANGE specifies the range <YYYYMMDDhhmm-YYYYMMDDhhmm>

Output options: –outlog=OUTLOG sets the output file for standard log output –label=LABEL sets label type for entries in OUTLOG <fname|fpath>

# EXAMPLES

logdissect –last=2m *

logdissect -v –range=20160202020202-20170227213200 –label=fpath messages debug apache2/error.log

logdissect -s –outlog=myaccess.log –grep=192.168.1.56 –last=30d –label=fname /var/log/apache2/access.log /var/log/apache2/other_vhosts_access.log

# Notes 1. metadata: logdissect uses file modification times to assign years to syslog date stamps. This allows it to parse logs that span more than one year without a problem. If you are copying log files, always use `` cp -p `` (or `` cp –preserve=timestamps `` ) and `` scp -p `` to preserve original mtimes and other file metadata.

  1. –range shortcuts: The range module will fill in your ranges with zeroes if they are shorter than 14 characters. If you want to get a range of 20170204120000 to 20170204130000, you can save time and use 2017020412 and 2017020413.

  2. –last options: the last option should be a number followed by either ‘s’ for seconds, ‘m’ for minutes, ‘h’ for hours, or ‘d’ for days (e.g. –last=20m).

# AUTHOR

Dan Persons (dpersonsdev@gmail.com)

# COPYRIGHT MIT License

Copyright (c) 2017 Dan Persons

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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