03-03-2008
SED/AWK Script to clear log file using timestamp?
I have a log file on our system which fills up with lines that have been timestamped, as follows....
[
03/03/2008 10:56:06:815] (ERROR) balance: continuing session to genapp02 : 18500
[
03/03/2008 10:56:06:820] (ERROR) balance: continuing session to genapp02 : 18500
[
03/03/2008 10:56:07:003] (ERROR) balance: continuing session to genapp02 : 18500
[
03/03/2008 10:56:07:032] (ERROR) balance: continuing session to genapp02 : 18500
[
03/03/2008 10:56:07:048] (ERROR) balance: continuing session to genapp03 : 18501
Is it possible to delete all lines in this file that are older than 28 days using SED/AWK in a script?
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LEARN ABOUT DEBIAN
algorithm::checkdigits::mxx_005
CheckDigits::MXX_005(3pm) User Contributed Perl Documentation CheckDigits::MXX_005(3pm)
NAME
CheckDigits::MXX_005 - compute check digits for ESR9 (CH)
SYNOPSIS
use Algorithm::CheckDigits;
$esr = CheckDigits('esr9');
if ($esr->is_valid('123456786')) {
# do something
}
$cn = $esr->complete('12345678');
# $cn = '123456786'
$cd = $esr->checkdigit('123456786');
# $cd = '6'
$bn = $esr->basenumber('123456786');
# $bn = '12345678'
DESCRIPTION
ALGORITHM
1. Digits are processed left to right. For the first digit applies the balance is 0.
2. The new balance is taken from the balance table according to the current balance (row) and the digit (column).
3. The check digit is the difference from the last balance to 10 taken modulo 10.
METHODS
is_valid($number)
Returns true only if $number consists solely of numbers and the last digit is a valid check digit according to the algorithm given
above.
Returns false otherwise,
complete($number)
The check digit for $number is computed and concatenated to the end of $number.
Returns the complete number with check digit or '' if $number does not consist solely of digits and spaces.
basenumber($number)
Returns the basenumber of $number if $number has a valid check digit.
Return '' otherwise.
checkdigit($number)
Returns the checkdigit of $number if $number has a valid check digit.
Return '' otherwise.
EXPORT
None by default.
AUTHOR
Mathias Weidner, <mathias@weidner.in-bad-schmiedeberg.de>
SEE ALSO
perl, CheckDigits, www.pruefziffernberechnung.de.
perl v5.10.0 2008-05-17 CheckDigits::MXX_005(3pm)