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Viewing: removeheaders

########################################################
## Copyright (c) 2008 Kirk Bauer
## Covered under the included MIT/X-Consortium License:
##    http://www.opensource.org/licenses/mit-license.php
## All modifications and contributions by other persons to
## this script are assumed to have been donated to the
## Logwatch project and thus assume the above copyright
## and licensing terms.  If you want to make contributions
## under your own copyright or a different license this
## must be explicitly stated in the contribution an the
## Logwatch project reserves the right to not accept such
## contributions.  If you have made significant
## contributions to this script and want to claim
## copyright please contact logwatch-devel@lists.sourceforge.net.
#########################################################

# Removes the beginning of each line of a standard /var/log/messages-style
# logfile or a pattern passed as first argument to this script.

my $RemovePattern = $ARGV[0] || '^... .. ..:..:.. [^ ]* [^\[:]*(?:\[\d*\])?: (?:\[\d+\.\d+\] )?';

while (defined($ThisLine = <STDIN>)) {
    # remove standard syslog-style header or configurable pattern
    $ThisLine =~ s/$RemovePattern//;
    #First line is Solaris ID tag style -mgt
    $ThisLine =~ s/^... .. ..:..:.. [^ ]* [^\[:]*(\[\d*\])?: \[ID \d+( \w+\.\w+)?] //;
    # the following is for those logs that use the service name, but do not
    # append the ':' right after (for example, syslogd restart).  Presumably
    # OnlyService is called before RemoveHeaders, so this should only be done
    # on the required services.
    $ThisLine =~ s/^... .. ..:..:.. [^ ]* //;
    # remove date-prefix, eg Tue Dec 27 21:36:48 2011 : <message>, from each line
    $ThisLine =~ s/^\w{3} \w{3} .. \d{2}:\d{2}:\d{2} \d{4}\s?:\s?//;
    print $ThisLine;
}

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