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Full Discussion: help to retrive data from log file
Top Forums Shell Programming and Scripting help to retrive data from log file Post 302078658 by Hitori on Monday 3rd of July 2006 04:51:55 PM
Old 07-03-2006
perl
Implying that dates were written in same format:

Code:
$ cat 1.pl
#!/usr/bin/perl -w

open (INPUT, "< logfile");

my $last = '', @to_print = ();
while (<INPUT>) {

    push @to_print, $_;
    if (/^\*{3}/) {
        s/\*//g;
        @to_print = ($to_print[$#to_print]) if $last ne $_;
        $last = $_;
    }
}

for (@to_print) {
    print $_;
}

Code:
$ cat logfile
*****************Thu Jun 28 20:06:28 BST 2006**************************************
Generation Number : 20062231
Generation Date : 20060629
There are no detail records
*****************Thu Jun 29 23:46:38 BST 2006**************************************
Generation Number : 20062231
Generation Date : 20060629
There are no detail records
*****************Fri Jun 30 00:01:19 BST 2006**************************************
Generation Number : 20062237
Generation Date : 20060629
There are no detail records
*****************Fri Jun 30 00:01:19 BST 2006**************************************
Generation Number : 20062237
Generation Date : 20060630
There are no detail records

Code:
$ ./1.pl
*****************Fri Jun 30 00:01:19 BST 2006**************************************
Generation Number : 20062237
Generation Date : 20060629
There are no detail records
*****************Fri Jun 30 00:01:19 BST 2006**************************************
Generation Number : 20062237
Generation Date : 20060630
There are no detail records

 

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LEARN ABOUT CENTOS

function::ctime

FUNCTION::CTIME(3stap)					      Time utility functions					    FUNCTION::CTIME(3stap)

NAME

       function::ctime - Convert seconds since epoch into human readable date/time string

SYNOPSIS

	   ctime:string(epochsecs:long)

ARGUMENTS

       epochsecs
	   Number of seconds since epoch (as returned by gettimeofday_s)

DESCRIPTION

       Takes an argument of seconds since the epoch as returned by gettimeofday_s. Returns a string of the form

       "Wed Jun 30 21:49:08 1993"

       The string will always be exactly 24 characters. If the time would be unreasonable far in the past (before what can be represented with a
       32 bit offset in seconds from the epoch) an error will occur (which can be avoided with try/catch). If the time would be unreasonable far
       in the future, an error will also occur.

       Note that the epoch (zero) corresponds to

       "Thu Jan 1 00:00:00 1970"

       The earliest full date given by ctime, corresponding to epochsecs -2147483648 is "Fri Dec 13 20:45:52 1901". The latest full date given by
       ctime, corresponding to epochsecs 2147483647 is "Tue Jan 19 03:14:07 2038".

       The abbreviations for the days of the week are 'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', and 'Sat'. The abbreviations for the months are
       'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', and 'Dec'.

       Note that the real C library ctime function puts a newline ('
') character at the end of the string that this function does not. Also note
       that since the kernel has no concept of timezones, the returned time is always in GMT.

SystemTap Tapset Reference					     June 2014						    FUNCTION::CTIME(3stap)
All times are GMT -4. The time now is 06:26 PM.
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