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Full Discussion: script for get lines with specific time.
Top Forums Shell Programming and Scripting script for get lines with specific time. Post 302586876 by Just Ice on Tuesday 3rd of January 2012 02:08:16 PM
Old 01-03-2012
if you have not yet started on this project or looking at a brick wall, here is a quick breakdown of what needs to happen ...

A. grab entries from the log in 5 minute increments for each hour for each day

B. sort entries according to categories

C. create and format report


i suspect that you are getting stuck with item A so here's something to help you out ... i did it using ksh in solaris 10 so you may need to modify it according to the shell you need to use and the OS you are working in ... you still need to include the parts for items B and C but that should be easier to do ... the script may run faster using perl, python or ruby so feel free to use and modify ... be sure to test in safe place before running in production area ...

btw, "`< $tmpfile`" construct does not work in some shells so use "`cat $tmpfile`" instead ...

anyways, good luck!

Code:
#! /bin/ksh 

list=/tmp/999
tmpfile=/tmp/444".tmp"
tmpdate=/tmp/444".date"
tmphour=/tmp/444".hour"
tmpatt=/tmp/444".att"
tmpok=/tmp/444".ok"
tmpno=/tmp/444".no"

grabentry(){
start=$1
end=$2

while [ $start -le $end ]
do
    eval "awk '\$1 ~ /$date/ && \$2 ~ /$hour:$start:/ {print \$0}'" $list
    start=`expr $start + 1`
    if [ $start -lt 10 ]
    then
        start=0$start
    fi
done
}


rm /tmp/444.* 2> /dev/null

## 
## uncomment next 7 lines if script performance slows
#awk -F" " '{print $1 | "sort -u"}' $list > $tmpdate
#awk -F" " '{print $2}' $list | awk -F":" '{print $1 | "sort -u"}' > $tmphour
#
#for date in `< $tmpdate`
#do
#    for hour in `< $tmphour`
#    do
for date in `awk -F" " '{print $1 | "sort -u"}' $list`                                #<--| comment out if above 7 lines are uncommented
do                                                                                    #<--|                                                                          
    for hour in `awk -F" " '{print $2}' $list | awk -F":" '{print $1 | "sort -u"}'`   #<--|
   do                                                                                 #<--|                                                                                                 
        end=4
        while [ $end -le 59 ]
        do
            if [ $end -lt 10 -a $end -ne 00 ]
            then
                end=0$end
            fi
            start=`expr $end - 4`
            if [ $start -eq 0 ]
            then
                start=00
            fi
            if [ $start -lt 10 -a $start -ne 00 ]
            then
                start=0$start
            fi
            grabentry $start $end | awk 'NF > 0' > $tmpfile.$date.$hour.$end 
            if [ ! -s $tmpfile.$date.$hour.$end ]
            then
                rm $tmpfile.$date.$hour.$end 2> /dev/null
            else
                echo "-- cutoff time is $date $hour.$end --"  ## echo line used for debugging, can be removed
                cat $tmpfile.$date.$hour.$end                 ## replace this line with code to process, create and format report
            fi
            end=`expr $end + 5`
        done
    done
done

exit 0

 

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LEARN ABOUT DEBIAN

xml::quote

Quote(3pm)						User Contributed Perl Documentation						Quote(3pm)

NAME

       XML::Quote - XML quote/dequote functions

SYNOPSIS

	 use strict;
	 use XML::Quote qw(:all);

	 my $str=q{666 > 444 & "apple" < 'earth'};
	 print xml_quote($str),"
";
	 # 666 &gt; 444 &amp; &quot;apple&quot; &lt; &apos;earth&apos;

	 my $str2=q{666 &gt; 444 &amp; &quot;apple&quot; &lt; &apos;earth&apos;};
	 print xml_dequote($str2),"
";
	 # 666 > 444 & "apple" < 'earth'

	 my $str3=q{666 > 444 & "apple" < 'earth'};
	 print xml_quote_min($str3),"
";
	 # 666 > 444 &amp; &quot;apple&quot; &lt; 'earth'

DESCRIPTION

       This module provides functions to quote/dequote strings in "xml"-way.

       All functions are written in XS and are very fast; they correctly process utf8, tied, overloaded variables and all the rest of perl
       "magic".

FUNCTIONS

       $quoted = xml_quote($str);
	   This function replaces all occurences of symbols '&', '"', ''', '>', '<' to '&amp;', '&quot;', '&apos;', '&gt;', '&lt;' respectively.

	   Returns quoted string or undef if $str is undef.

       $dequoted = xml_dequote($str);
	   This function replaces all occurences of '&amp;', '&quot;', '&apos;', '&gt;', '&lt;' to '&', '"', ''', '>', '<' respectively.  All
	   other entities (for example &nbsp;) will not be touched.

	   Returns dequoted string or undef if $str is undef.

       $quoted = xml_quote_min($str);
	   This function replaces all occurences of symbols '&', '"', '<' to '&amp;', '&quot;', '&lt;' respectively. Symbols ''' and '>' are not
	   replaced.

	   Returns quoted string or undef if $str is undef.

EXPORT

       xml_quote(), xml_dequote() are exported as default.

PERFORMANCE

       You can use t/benchmark.pl to test the perfomance.  Here is the result on my P4 box.

	 Benchmark: timing 1000000 iterations of perl quote, xs quote...
	 perl quote: 108 wallclock secs (88.08 usr +  0.01 sys = 88.09 CPU) @ 11351.64/s (n=1000000)
	   xs quote: 20 wallclock secs (16.78 usr +  0.00 sys = 16.78 CPU) @ 59591.20/s (n=1000000)

	 Benchmark: timing 1000000 iterations of perl dequote, xs dequote...
	 perl dequote: 106 wallclock secs (85.22 usr +	0.09 sys = 85.31 CPU) @ 11721.54/s (n=1000000)
	   xs dequote: 19 wallclock secs (15.92 usr +  0.02 sys = 15.94 CPU) @ 62743.13/s (n=1000000)

AUTHOR

       Sergey Skvortsov <skv@protey.ru>

SEE ALSO

       http://www.w3.org/TR/REC-xml <http://www.w3.org/TR/REC-xml>, perlre

COPYRIGHT

       Copyright 2003 Sergey Skvortsov <skv@protey.ru>.  All rights reserved.

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2008-06-26								Quote(3pm)
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