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to sort log files by date

Posted on 2008-10-25
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Last Modified: 2013-12-27
Hi, I have logs files like this

<Oct 7, 2008 7:43:59 AM CDT> <Notice> <Security> <BEA-090082> <Security initializing using security realm myrealm.>
2008-10-07 07:44:14,106 INFO [org.springframework.core.CollectionFactory] - <JDK 1.4+ collections available>

I need to search all the lines for a particular date and then copy them to a different file. For example if I mention Oct 7, 2008 as input the above two lines are to be copied into a new file named  date_file.txt

Thanks in advance,
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Question by:conversekid
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8 Comments
 
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Assisted Solution

by:Tintin
Tintin earned 2000 total points
ID: 22804998
Where does the sort come into the question?

To search for a date, you just need to do

egrep "2008-10-07|Oct 7, 2008" log >date_file.txt
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Author Comment

by:conversekid
ID: 22805082
Thanks...I need to get the make it varaible..example we should be able to accept any date and then search for it......
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Author Comment

by:conversekid
ID: 22805111
The date in the logs will be in either of the below two formats:
<Oct 7, 2008>
 2008-10-07
We need to search for these two formats depending on the date we get as input and then copy the lines containing these lines to a different file.....
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LVL 48

Expert Comment

by:Tintin
ID: 22805450
What format will the date be entered as?  Is this on Solaris 10?
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Author Comment

by:conversekid
ID: 22805635
Its solaris 9. We can ask the user to enter the date in any particular format.
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LVL 48

Expert Comment

by:Tintin
ID: 22806328
One last question, are you allowed to install any additional software?  If you can install GNU date, it would make this task much more simple.
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Author Comment

by:conversekid
ID: 22806422
I really wish we could but we are not allowed to install software.
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Accepted Solution

by:
Tintin earned 2000 total points
ID: 22806609
OK, here's a script which will accept input in YYYY-MM-DD format
#!/bin/sh
DATE1=$1
year=`echo $DATE1 | cut -f1 -d-`
mon=`echo $DATE1 | cut -f2 -d-`
day=`echo $DATE1 | cut -f3 -d- | sed "s/^0//"`
 
case $mon in
1)  mon=Jan ;;
2)  mon=Feb ;;
3)  mon=Mar ;;
4)  mon=Apr ;;
5)  mon=May ;;
6)  mon=Jun ;;
7)  mon=Jul ;;
8)  mon=Aug ;;
9)  mon=Sep ;;
10) mon=Oct ;;
11) mon=Nov ;;
12) mon=Dec ;;
esac
 
DATE2="$mon $day, $year"
egrep "$DATE1|$DATE2" /some/log >date_file.txt

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