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Full Discussion: Advise to print lines before and after patterh match and checking and removing duplicate files
Top Forums UNIX for Beginners Questions & Answers Advise to print lines before and after patterh match and checking and removing duplicate files Post 303046173 by newbie_01 on Sunday 26th of April 2020 10:58:51 PM
Old 04-26-2020
Hi Jim,


The grep works in Linux but not in Solaris. Sorry, forgot to mention, OS is SunOS <hostname> 5.11 11.3 sun4v sparc sun4v


Yeah, the code below works and files.tmp did has the list of files with their checksum, I only need to retain one of the files. Trying to work out how to sort the output AND retain just the lowest numbered file.



Code:
cd /path/to/logs

grep -l "CORRUPTION DETECTED" *.log  |
while read fname
do
   cksum $fname
done | sort -n -k1 > files.tmp
# files.tmp has a sorted list of files - by checksum




Code:
$: cat files.tmp
1237008222      10664   log.10
1237008222      10664   log.12
1237008222      10664   log.14
1237008222      10664   log.16
1237008222      10664   log.18
1237008222      10664   log.2
1237008222      10664   log.4
1237008222      10664   log.6
1237008222      10664   log.8
2296620157      10696   log.1
2296620157      10696   log.11
2296620157      10696   log.13
2296620157      10696   log.15
2296620157      10696   log.17
2296620157      10696   log.3
2296620157      10696   log.5
2296620157      10696   log.7
2296620157      10696   log.9


So from the list above, I will only want to retain log.1 and log.2, so kinda like group the output list above by checksum and retain the lowest number named file. Googling at the moment if there is an easier of deleting from the files.tmp list besides how am doing it below:


Code:
#!/bin/ksh
#

awk '{ print $1 }' files.tmp | sort | uniq > tmp.00

while read checksum
do
   grep "^$checksum" files.tmp | sort | sort -n -t. -k2 | awk 'NR>1 { print $3 }' | xargs rm
done < tmp.00


BTW, what is the code here below. I think there is something missing here, is oldfile supposedly the script that does the checksum and then I run the code below?



Code:
oldsum=0
oldfile
ls logfile* | 
while read sum size name
do
   if [  "$sum" -eq $oldsum ] ; then
      echo "$oldname and $name are duplicates"
      # put a rm command here after you see this work correctly for you
      # assuming you delete the second file name
      continue
   fi
   oldname=$name
   oldsum=$sum
done

 

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LEARN ABOUT CENTOS

log2pcap

LOG2PCAP(1)							   User Commands						       LOG2PCAP(1)

NAME

       log2pcap - Extract network traces from Samba log files

SYNOPSIS

       log2pcap [-h] [-q] [logfile] [pcap_file]

DESCRIPTION

       This tool is part of the samba(7) suite.

       log2pcap reads in a samba log file and generates a pcap file (readable by most sniffers, such as ethereal or tcpdump) based on the packet
       dumps in the log file.

       The log file must have a log level of at least 5 to get the SMB header/parameters right, 10 to get the first 512 data bytes of the packet
       and 50 to get the whole packet.

OPTIONS

       -h
	   If this parameter is specified the output file will be a hex dump, in a format that is readable by the text2pcap utility.

       -q
	   Be quiet. No warning messages about missing or incomplete data will be given.

       logfile
	   Samba log file. log2pcap will try to read the log from stdin if the log file is not specified.

       pcap_file
	   Name of the output file to write the pcap (or hexdump) data to. If this argument is not specified, output data will be written to
	   stdout.

       -?|--help
	   Print a summary of command line options.

EXAMPLES

       Extract all network traffic from all samba log files:

			  $ log2pcap < /var/log/* > trace.pcap

       Convert to pcap using text2pcap:

		$ log2pcap -h samba.log | text2pcap -T 139,139 - trace.pcap

VERSION

       This man page is correct for version 3 of the Samba suite.

BUGS

       Only SMB data is extracted from the samba logs, no LDAP, NetBIOS lookup or other data.

       The generated TCP and IP headers don't contain a valid checksum.

SEE ALSO

       text2pcap(1), ethereal(1)

AUTHOR

       The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open
       Source project similar to the way the Linux kernel is developed.

       This manpage was written by Jelmer Vernooij.

Samba 4.0							    06/17/2014							       LOG2PCAP(1)
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