Perl script to change the date in some scenario Post: 302750651

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Top Forums Shell Programming and Scripting Perl script to change the date in some scenario Post 302750651 by santhoshks on Wednesday 2nd of January 2013 06:21:55 AM

01-02-2013

Registered User

#!/usr/bin/perl -w

Code:

# Print the value of the command line arguments
$FSNCount = $ARGV[2];
#print "Replacing all QQQ in $ARGV[0] - with $FSNCount in $ARGV[1]\n";
$DateField=`date +%Y%m%d`;
chomp ($DateField);
$TimeField=`date +%H%M`;
chomp ($TimeField);
open INPUTFILE, $ARGV[0] or die $!;
open OUTPUTFILE,">$ARGV[1]" or die $!;
# Read the input file line by line
while (<INPUTFILE>)
  {
    $_ =~ s/QQQ/$FSNCount/g;
    $_ =~ s/YYYYMMDD/$DateField/g;
    $_ =~ s/HHHH/$TimeField/g;
    print OUTPUTFILE $_;
  }
#while (<INPUTFILE>)
#  {
#  }
print "\t $DateField\n";
print "\t $TimeField";
close INPUTFILE;
close OUTPUTFILE;
~

This is wat i have tried

---------- Post updated at 04:51 PM ---------- Previous update was at 04:42 PM ----------

initially FSN count =100 and date value ll become current date but when FSNCOUNT = 999 , Date field should be changed to previous day s date and again FSN count should become 100...and the date value should be previous day only till it reach 999 again. so on

Code:

eg : FSN COUNT =100 , date= 20130102
      FSNCOUNT=101, date = 20130102
     ....
     ....
     FSN COUNT =999, date= 20130102 and FSN COUNT should become 100

and from next time date=20130101
so next time

Code:

FSNCOUNT=100, date = 20130101
....

Last edited by Scott; 01-02-2013 at 08:44 AM.. Reason: Code tags

santhoshks

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filter_mysqlbinlog

FILTER_MYSQLBINLOG(1p)					User Contributed Perl Documentation				    FILTER_MYSQLBINLOG(1p)

NAME

       filter_mysqlbinlog - Trimming ROLLBACK statements and equivalent BINLOG events added by mysqlbinlog. This script is now obsolete.

SYNOPSIS

       mysqlbinlog binary_or_relay_log_file | filter_mysqlbinlog

       Note that this script is now obsolete and not used by MHA by default.

DESCRIPTION

       mysqlbinlog command provided by Oracle implicitly adds ROLLBACK statements and equivalent BINLOG events. But this causes problems when
       recovering slave servers. To recover slaves, MHA might need to apply the following binlog events.
	1) Relay log events from Relay_Log_Pos to the end of the relay log file
	2) Differential relay log events from the latest slave
	3) Differential binary log events from the dead master mysqlbinlog command needs to be executed on these files separately. If a
       transaction does not end by 1) or 2), implicit ROLLBACK event rolls back the transaction, which will result in inconsistency.
       filter_mysqlbinlog is a tool to fix this issue.	Note that ROLLBACK statements themselves are added in usual situations. For example, when
       you execute 1. BEGIN; 2. Updating transactional tables 3. Updating non-transactional tables  4. ROLLBACK, a ROLLBACK statement is written
       to the binary log to rollback transactional queries. This is normal situation so filter_mysqlbinlog must not remove all ROLLBACK events.

       Note that this script is now obsolete and not used by MHA by default.

perl v5.14.2							    2012-01-08						    FILTER_MYSQLBINLOG(1p)

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