Crontab on hourly basis Post: 302765055

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How do you automate an hourly file check?

Hi, New to the forum, Great site, I can learn a lot from here!! :cool: I would like to know how to automate a command that checks the Sybase database's are "alive" on an hourly basis, and mails outlook if they are not

2. Red Hat

hourly kannel log rotation

I need to Change threshold of rotation of kannel logs. At the moment, Kannel (the SMS gateway system) logs activities in log files which are rotated daily. Due to high traffic, the logs grow fast every day before they are rotated; meaning that the write speeds while logging slow down due to large...

3. Solaris

Monitoring the output of 'top' command on hourly basis.

I need to capture the following data on an hourly basis through cronjob scheduling:- 1. load averages 2. Total no. of processes. 3. CPU state 4. Memory 5. Top 3 process details. All the above information is available through the command 'top'. But here we need to automate the same and...

4. UNIX for Dummies Questions & Answers

Maintaining HOURLY backups

I have a system where i take hourly back-ups of the system.The script for maintaining full backup for the last 5 days is find /backup/server -type f -mtime +4 -exec rm -f {} \; works fine for keeping the files of some 5 days old. In the case of hourly backups.How do we write to keep...

5. Shell Programming and Scripting

how to grep string from hourly basis files

dear all, pls help on this script.. i have many files which will be created every mins in particular directory. i want to grep a particular string from only for unique hour files. from the below code i want to grep a string from only 9th hour files . Ex files: -rw-r--r-- 1 root ...

6. UNIX for Advanced & Expert Users

Problems with hourly removal in cron

In my cron job on one system I have log files removed older than 3 days, like so: find /u01/arch/PRD8 -mtime +3 -a -name "*.log" -exec rm {} \; On another system I would like to check and remove anything older than 2 hours. Any help would be greatly appreciated :wall:

7. Shell Programming and Scripting

FTP a file on Hourly basis

Hi, I have to upload a file test_201105281100.txt to a ftp location. The files will be created on hourly basis like test_201105281100.txt, test_201105281200.txt & so on. After a file is uploaded successfully, I need to rename the file as test_201105281100.success & if it is not uploaded...

8. Shell Programming and Scripting

Hourly averaging using Awk

Hey all, I have a set of 5-second data as shown below. I need to find an hourly average of this data. date co2 25/06/2011 08:04:00 8.30 25/06/2011 08:04:05 8.31 25/06/2011 08:04:10 8.32 25/06/2011 08:04:15 8.33 25/06/2011 08:04:20 ...

9. Shell Programming and Scripting

Calculate avg response time on hourly basis

Hi, I am trying to calculate avg response time on hourly basis from the log file which has millions of records. As of now I am trying with creating temp file which will have lines with unique id and start time and end time and after that another script will run on this temp file to...

LEARN ABOUT DEBIAN

fake-hwclock

FAKE-HWCLOCK(8) 					      System Manager's Manual						   FAKE-HWCLOCK(8)

NAME

       fake-hwclock - Control fake hardware clock

SYNOPSIS

       fake-hwclock [ command ] [ force ]

BACKGROUND

       Many  embedded  Linux systems do not have a functional hardware clock. Either they simply don't have a hardware clock at all or they have a
       hardware clock but it is not usable (e.g. because Linux doesn't know how to use it or because no battery is present).

       This can lead to time moving backwards to some default value (often 1970) when the system is rebooted. Since lots of software assumes  that
       time only moves forward this is a bad thing. NTP can (and should where practical) be used to sync with an external timeserver but it is not
       available early in the boot process and may be unavailable for other reasons.

DESCRIPTION

       fake-hwclock sets and queries a fake "hardware clock" which stores the time in a file. This program may be run by the system  administrator
       directly but is typically run by init (to load the time on startup and save it on shutdown) and cron (to save the time hourly).

       If no command is given then fake-hwclock acts as if the save command was used.

COMMANDS

       save   Save the time to the file.

       load   Load  the time from the file. If force is specified fake-hwclock will move the clock either backwards or forwards. Otherwise it will
	      only move it forwards.

FILES

       /etc/fake-hwclock.data
	      The file used to store the time

       /etc/init.d/fake-hwclock
	      The init script used to run fake-hwclock on startup and shutdown

       /etc/default/fake-hwclock
	      Settings file for the init script.

       /etc/cron.hourly/fake-hwclock
	      Cron job used to save the time hourly

ENVIRONMENT VARIABLES

       FILE   set the file used by fake-hwclock

RETURN VALUES

       1 is returned for invalid commands. 0 is returned in all other cases.

BUGS

       This approach can only provide a crude approximation of what a real hardware clock provides. Use of NTP or another method to keep the  time
       in sync is strongly advised.

Debian								   5 April 2012 						   FAKE-HWCLOCK(8)