09-26-2015
Is this something you plan to run every 15 minutes (so you just want to see stuff added since your last run)?
Does the log file you're examining rotate? If so, is the rotation synchronized with your script, or do you need to sometimes need to examine the end of an old log file in addition to the current log file?
Are you looking for the 15 minutes of data before the time on the clock when you start your script, or are you looking for the 15 minutes of data ending with the timestamp on the last entry in your log file?
What operating system and shell are you using?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
give me a shell-script which extract data from log file on a server by giving date and time as input (for both start time and end time) and it will give the logs generated during the given time as output. (4 Replies)
Discussion started by: abhishek27
4 Replies
2. Shell Programming and Scripting
I have to write a script to search the logfiles i.e msg.log for the following
The Search Criteria is as follows
1. IP address
2. String
Ex: abc.123.com
3. Timestamp ( start - end )
ex: 2008-05-04-00:30:00 - 2008-05-08-04:30:00
Can anyone help to devise a script for... (9 Replies)
Discussion started by: indiakingz
9 Replies
3. Shell Programming and Scripting
Hi All,
I would like to write a script which will search a file say abc.dat in /a/b/data for 15 mins only. If the script finds the file in 15 mins then it will exit will exit sucessfully and if there is no file for 15 mins it will exit and copy the last day file (abc.dat_ddmmyyhhmmss) from... (1 Reply)
Discussion started by: chandancsc
1 Replies
4. Shell Programming and Scripting
If I have a log like :
Mon Jul 19 05:07:34 2010; TCP; eth3; 52 bytes; from abc to def
Mon Jul 19 05:07:35 2010; UDP; eth3; 46 bytes; from aaa to bbb
Mon Jul 19 05:07:35 2010; TCP; eth3; 52 bytes; from def to ghi
I will need an output like this :
Time abc to def... (1 Reply)
Discussion started by: hitha87
1 Replies
5. Shell Programming and Scripting
HI All,
I have a log file where the logs will be in the format as given below:
2011-05-25 02:32:51 INFO PROCESS STARTING
2011-05-25 02:32:52 INFO PROCESS STARTED
.
.
.
I want to retrieve only the logs which are less than 5 mins older than current time using grep... (3 Replies)
Discussion started by: rvhg16
3 Replies
6. AIX
I want to grep only last 5 mins of a log file in bash
I have a syslog which contains the following
Mon Jul 11 20:47:42
Mon Jul 11 20:47:52
The following works in Unix but not in AIX . Please can you let me know as to what would be the AIX equivalent
Code: for (( i = 5; i >=0;... (1 Reply)
Discussion started by: necro98
1 Replies
7. Shell Programming and Scripting
A happy Monday to you all,
I have a .csv file which contains data taken every 5 seconds. I want to average these 5 second data points into 30 minute averages!
date co2
25/06/2011 08:04 8.31
25/06/2011 08:04 8.32
25/06/2011 08:04 8.33... (18 Replies)
Discussion started by: gd9629
18 Replies
8. Shell Programming and Scripting
Hello,
Since I m new to shell, I had a hard time to sought out this problem.
I have a log file of a utility which tells that batch files are successful with timestamp. Given below is a part of the log file.
2013/03/07 00:13:50 Apache/1.3.29 (Unix) configured -- resuming normal operations... (12 Replies)
Discussion started by: rpm120
12 Replies
9. Shell Programming and Scripting
Hello All,
I have to write a script which will search for diffrent patterns like "Struck" "Out of Memory" , etc from a log file in Linux box's.
Now I will be executing a cron job to find out the results by executing the script once in every 30 minutes.
suppose time is
14-04-29:05:31:09
So I... (3 Replies)
Discussion started by: Shubhasis Mathr
3 Replies
10. Shell Programming and Scripting
Dears,
I am looking for a script which will work as a watch directory.
I ha directory which keep getting files in every 10 mins and some time delay.
I want to monitor if the directory getting the files in every 10 mins if not captured the last received file time and calculate the delay.
... (6 Replies)
Discussion started by: sadique.manzar
6 Replies
LEARN ABOUT OSX
rotatelogs
ROTATELOGS(8) rotatelogs ROTATELOGS(8)
NAME
rotatelogs - Piped logging program to rotate Apache logs
SYNOPSIS
rotatelogs [ -l ] [ -f ] logfile rotationtime|filesizeM [ offset ]
SUMMARY
rotatelogs is a simple program for use in conjunction with Apache's piped logfile feature. It supports rotation based on a time interval or
maximum size of the log.
OPTIONS
-l Causes the use of local time rather than GMT as the base for the interval or for strftime(3) formatting with size-based rotation.
Note that using -l in an environment which changes the GMT offset (such as for BST or DST) can lead to unpredictable results!
-f Causes the logfile to be opened immediately, as soon as rotatelogs starts, instead of waiting for the first logfile entry to be read
(for non-busy sites, there may be a substantial delay between when the server is started and when the first request is handled,
meaning that the associated logfile does not "exist" until then, which causes problems from some automated logging tools). Available
in version 2.2.9 and later.
logfile
rotationtime
The time between log file rotations in seconds. The rotation occurs at the beginning of this interval. For example, if the rotation
time is 3600, the log file will be rotated at the beginning of every hour; if the rotation time is 86400, the log file will be
rotated every night at midnight. (If no data is logged during an interval, no file will be created.)
filesizeM
The maximum file size in megabytes followed by the letter M to specify size rather than time.
offset The number of minutes offset from UTC. If omitted, zero is assumed and UTC is used. For example, to use local time in the zone UTC
-5 hours, specify a value of -300 for this argument. In most cases, -l should be used instead of specifying an offset.
EXAMPLES
CustomLog "|bin/rotatelogs /var/logs/logfile 86400" common
This creates the files /var/logs/logfile.nnnn where nnnn is the system time at which the log nominally starts (this time will always be a
multiple of the rotation time, so you can synchronize cron scripts with it). At the end of each rotation time (here after 24 hours) a new
log is started.
CustomLog "|bin/rotatelogs -l /var/logs/logfile.%Y.%m.%d 86400" common
This creates the files /var/logs/logfile.yyyy.mm.dd where yyyy is the year, mm is the month, and dd is the day of the month. Logging will
switch to a new file every day at midnight, local time.
CustomLog "|bin/rotatelogs /var/logs/logfile 5M" common
This configuration will rotate the logfile whenever it reaches a size of 5 megabytes.
ErrorLog "|bin/rotatelogs /var/logs/errorlog.%Y-%m-%d-%H_%M_%S 5M"
This configuration will rotate the error logfile whenever it reaches a size of 5 megabytes, and the suffix to the logfile name will be cre-
ated of the form errorlog.YYYY-mm-dd-HH_MM_SS.
PORTABILITY
The following logfile format string substitutions should be supported by all strftime(3) implementations, see the strftime(3) man page for
library-specific extensions.
o %A - full weekday name (localized)
o %a - 3-character weekday name (localized)
o %B - full month name (localized)
o %b - 3-character month name (localized)
o %c - date and time (localized)
o %d - 2-digit day of month
o %H - 2-digit hour (24 hour clock)
o %I - 2-digit hour (12 hour clock)
o %j - 3-digit day of year
o %M - 2-digit minute
o %m - 2-digit month
o %p - am/pm of 12 hour clock (localized)
o %S - 2-digit second
o %U - 2-digit week of year (Sunday first day of week)
o %W - 2-digit week of year (Monday first day of week)
o %w - 1-digit weekday (Sunday first day of week)
o %X - time (localized)
o %x - date (localized)
o %Y - 4-digit year
o %y - 2-digit year
o %Z - time zone name
o %% - literal `%'
Apache HTTP Server 2010-11-06 ROTATELOGS(8)