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Top Forums Shell Programming and Scripting How to extract log data based on current date and month ? Post 302453057 by superHonda123 on Tuesday 14th of September 2010 01:57:22 AM
Old 09-14-2010
Hi methyl,

Thanks for your response.

The current date and month is referring to today's date and month as this script will be scheduled to run daily and monthly.

I've tried your method and it seems to be OK. Please see below.

Code:
# TODAY=`date +'%a %b %e, %Y'`

# echo $TODAY
Tue Sep 14, 2010

However, as shown below, some of the dates are not always in 2 digits, then your method might not work when the date is smaller than 10, single digit.

Code:
Sample log data:
----------------
13:36  Sun Dec 8, 2009.  Reboot:  (by root)
13:56  Sun Dec 10, 2009.  Halt:  (by root)
15:12  Sun Dec 27, 2009.  Reboot:  (by root)
13:46  Sun Apr 1, 2010.  Halt:
14:43  Sun Apr 8, 2010.  Halt:
17:28  Sun Apr 18, 2010.  Reboot:  (by root)
18:15  Thu Jul  1, 2010.  Reboot:  (by  root)
12:01  Mon Aug 30, 2010.  Reboot:  (by root)

Please kindly advice.

Thanks.

Cheers.

Last edited by superHonda123; 09-14-2010 at 02:58 AM.. Reason: add more info
 

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DATE(1) 						      General Commands Manual							   DATE(1)

NAME
date - print or set the date and time SYNOPSIS
date [-qsu] [[MMDDYY]hhmm[ss]] [+format] OPTIONS
-q Read the date from stdin -s Set the time (implicit for -q or a date string) -u Print the date as GMT -t Use this number of seconds instead of current time EXAMPLES
date # Print the date and time date 0221921610 # Set date to Feb 21, 1992 at 4:10 p.m. DESCRIPTION
With the -q flag or a numeric argument, date sets the GMT time and date. MMDDYY refers to the month, day, and year; hhmmss refers to the hour, minute and second. Each of the six fields must be exactly two digits, no more and no less. date always display the date and time, with the default format for the system. The -u flag request GMT time instead of local time. A format may be specified with a + followed by a printf-like string with the following options: %% % character %A Name of the day %B Name of the month %D mm/dd/yy %H Decimal hour on 2 digits %I Decimal hour modulo 12 on 2 digits %M Decimal minute on 2 digits %S Decimal seconds on 2 digits %T HH:MM:SS %U Decimal week number, Sunday being first day of week %W Decimal week number, Monday being first day of week %X Same as %T %Y Decimal year on 4 digits %Z Time Zone (if any) %a Abbreviated name of the day %b Abbreviated name of the month %c Appropriate date & time (default format) %d Decimal day of the month on 2 digits %e Same as %d, but a space replaces leading 0 %h Same as %b %j Decimal dey of the year on 3 digits %m Decimal month on 2 digits %n Newline character %p AM or PM %r 12-hour clock time with AM/PM %s Number of seconds since the epoch %t Tab character %w Decimal day of the week (0=Sunday) %x Same as %D %y Decimal year on 2 digits SEE ALSO
time(2), ctime(3), readclock(8). DATE(1)
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