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Full Discussion: GAWK/GREP Equivalent
Top Forums Shell Programming and Scripting GAWK/GREP Equivalent Post 302720137 by metallica1973 on Tuesday 23rd of October 2012 01:35:51 PM
Old 10-23-2012
GAWK/GREP Equivalent
What is GAWK equivalent to greps -B 5 -A 5?

Code:
zgrep -i "^oct 20" /var/log/syslog*|grep -iB 5 -A 5 'postfix\/pickup
/var/log/syslog.1.gz:Oct 20 01:55:01 elmo CROND[7682]: (mail) CMD (/usr/bin/python -S /usr/lib64/mailman/cron/gate_news)
/var/log/syslog.1.gz:Oct 20 02:00:01 elmo CROND[7701]: (mail) CMD (/usr/bin/python -S /usr/lib64/mailman/cron/gate_news)
/var/log/syslog.1.gz:Oct 20 02:00:02 elmo CROND[7704]: (root) CMD (/home/davider/scripts/backups/saintbk.sh full )
/var/log/syslog.1.gz:Oct 20 02:00:03 elmo kernel:  CIFS VFS: Error 0xfffffffb on cifs_get_inode_info in lookup of \backups\automated
/var/log/syslog.1.gz:Oct 20 02:00:03 elmo last message repeated 11 times
/var/log/syslog.1.gz:Oct 20 02:00:03 elmo postfix/pickup[7339]: 585F8E607F: uid=0 from=<root>
/var/log/syslog.1.gz:Oct 20 02:00:03 elmo postfix/cleanup[7716]: 585F8E607F: message-id=<20121020060003.585F8E607F@elmo.localdomain>
/var/log/syslog.1.gz:Oct 20 02:00:03 elmo postfix/qmgr[3925]: 585F8E607F: from=<root@elmo.localdomain>, size=1723, nrcpt=1 (queue active)
/var/log/syslog.1.gz:Oct 20 02:00:03 elmo postfix/local[7718]: 585F8E607F: to=<postfix@elmo.localdomain>, orig_to=<root>, relay=local, delay=0.32, delays=0.05/0.2/0/0.08, dsn=2.0.0, status=sent (delivered to mailbox)
/var/log/syslog.1.gz:Oct 20 02:00:03 elmo postfix/qmgr[3925]: 585F8E607F: removed
/var/log/syslog.1.gz:Oct 20 02:01:01 elmo CROND[7723]: (root) CMD (nice -n 19 run-parts --report /etc/cron.hourly)
--
/var/log/syslog.1.gz:Oct 20 03:55:01 elmo CROND[8208]: (mail) CMD (/usr/bin/python -S /usr/lib64/mailman/cron/gate_news)
/var/log/syslog.1.gz:Oct 20 04:00:01 elmo CROND[8227]: (mail) CMD (/usr/bin/python -S /usr/lib64/mailman/cron/gate_news)
/var/log/syslog.1.gz:Oct 20 04:00:01 elmo CROND[8230]: (root) CMD (/home/davider/scripts/backups/spacechk.sh)
/var/log/syslog.1.gz:Oct 20 04:00:02 elmo kernel:  CIFS VFS: Error 0xfffffffb on cifs_get_inode_info in lookup of \backups\automated
/var/log/syslog.1.gz:Oct 20 04:00:02 elmo last message repeated 4 times
/var/log/syslog.1.gz:Oct 20 04:00:02 elmo postfix/pickup[8202]: 0D62FE607F: uid=0 from=<root>
/var/log/syslog.1.gz:Oct 20 04:00:02 elmo postfix/cleanup[8235]: 0D62FE607F: message-id=<20121020080002.0D62FE607F@elmo.localdomain>
/var/log/syslog.1.gz:Oct 20 04:00:02 elmo postfix/qmgr[3925]: 0D62FE607F: from=<root@elmo.localdomain>, size=1018, nrcpt=1 (queue active)
/var/log/syslog.1.gz:Oct 20 04:00:02 elmo postfix/local[8237]: 0D62FE607F: to=<postfix@elmo.localdomain>, orig_to=<root>, relay=local, delay=0.09, delays=0.08/0/0/0, dsn=2.0.0, status=sent (delivered to mailbox)
/var/log/syslog.1.gz:Oct 20 04:00:02 elmo postfix/qmgr[3925]: 0D62FE607F: removed
/var/log/syslog.1.gz:Oct 20 04:01:01 elmo CROND[8243]: (root) CMD (nice -n 19 run-parts --report /etc/cron.hourly)

Once the occurrence is found, I want to see 5 lines before and after. Thanks
 

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LEARN ABOUT DEBIAN

syslog2dlf

SYSLOG2DLF.IN(1)					  LogReport's Lire Documentation					  SYSLOG2DLF.IN(1)

NAME

       syslog2dlf - convert syslog log files to DLF

SYNOPSIS

       syslog2dlf

DESCRIPTION

       This script uses the Lire::Syslog module to create a DLF representation of the syslog log files. It can process all the syslog log formats
       supported by that module.

EXAMPLES

       To process a log as produced by syslog:

	$ syslog2dlf < syslog.log

       syslog2dlf will be rarely used on its own, but is more likely called by lr_log2report:

	$ lr_log2report syslog < /var/log/syslog.log

SEE ALSO

       Lire::Syslog(3pm)

VERSION

       $Id: syslog2dlf.in,v 1.6 2006/07/23 13:16:36 vanbaal Exp $

AUTHOR

       Francis J. Lacoste <flacoste@logreport.org>

COPYRIGHT

       Copyright (C) 2002 Stichting LogReport Foundation LogReport@LogReport.org

       This program is part of Lire.

       Lire is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free
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       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program (see COPYING); if not, check with
       http://www.gnu.org/copyleft/gpl.html.

Lire 2.1.1							    2006-07-23							  SYSLOG2DLF.IN(1)
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