Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Cron Job to Run every 2 minutes
Top Forums Shell Programming and Scripting Cron Job to Run every 2 minutes Post 302962869 by Don Cragun on Saturday 19th of December 2015 10:49:26 PM
Old 12-19-2015
Quote:
Originally Posted by pokhraj_d
Hello Gurus,

I want to schedule a cron job which will run every 2 minutes starts at 11:25 AM and 3:25 AM daily.

Can you please suggest as how to schedule the job.

Thanks-
Pokhraj Das
I don't understand the problem. If a job is supposed to start every two minutes what difference does it make when the first one starts? And, why do you need two jobs that run every two minutes? Why not just run one script every two minutes that fires up the two script you want to run?

On systems where cron/crontab allows repetitions using /, it would seem that the following crontab entries should work:
Code:
1/2 * * * * /path/to/your/0325script
1/2 * * * * /path/to/your/1125script

and on other systems, the longer (standard) specification requesting the same behavior would be:
Code:
1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59 * * * * /path/to/your/0325script
1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59 * * * * /path/to/your/1125script

 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Run cron job problem

I have the below crontab job that it will run at every 7:00am - 10:00am , it work fine , now if I want to skip to run the crontab job at a specific time , eg. I want the script not to run at next Monday 8:00am ( only skip this time , other time is normal ) , how can I make it ? is it possible ?... (3 Replies)
Discussion started by: ust
3 Replies

2. Shell Programming and Scripting

Does not run via cron job

I have a perl script, when I ran manually it works perfect. I check the permissions which are fine. How can I find out why it is not running? how can I setup a log to check. I am running it on solaris 9. It compares multiple files, SCP and then send out an e-mail. As I said when I ran it... (2 Replies)
Discussion started by: amir07
2 Replies

3. UNIX for Advanced & Expert Users

Need help with a script run by a cron job.

Hi, new to this forum and not sure if this is the right place to post. I'm new to cron jobs and scripts, and I need some help with a script to be used with a cron job. I already have a bot set up at a certain website address and need a script that the cron job will load every day that tells it to... (1 Reply)
Discussion started by: klawless
1 Replies

4. Shell Programming and Scripting

Cron job for every five minutes and between hours

Hi I need to run a script every five minutes and it should run between 07-15 hours all days. How i can achieve this... i tried like this */5 07-15 * * * /scripts/CreateFtpData.sh It throws an error... (1 Reply)
Discussion started by: aemunathan
1 Replies

5. Solaris

How to setup a cron job to run every 45 minutes in Solaris 5.10

How to setup a cron job to run every 45 minutes in Solaris 5.10 (9 Replies)
Discussion started by: reyazan
9 Replies

6. UNIX for Advanced & Expert Users

Use cron to run job every other week

my colleague was asking about this: is there a way to run a cron job biweekly, like a script five.sh to run every *OTHER* Friday within November its part about every other Friday we cant find any documentation. thx L (8 Replies)
Discussion started by: lydiaflamp
8 Replies

7. Shell Programming and Scripting

Cron doesn't run job in background

Hi, First of all merry christmas and Happy holidays to all :D My situation is as below, When a backup job runs on a mainframe server, it creates a 0byte file on a network drive which is accessible through linux Linux server : Red Hat Enterprise Linux Server release 5.3 Beta (Tikanga) File... (6 Replies)
Discussion started by: sam05121988
6 Replies

8. Shell Programming and Scripting

Cron job - Need to run Cron every quarter at particular time

Hi, 1) If some job supposed to run on 1st of every month at 7 AM In cron job when we have a blackout on the 1st ( i.e when 1st falls on a sunday ) how can we make the job run the next business day? 2) How can we run a job on 25th of every quarter 7 AM(jan,apr,jul,oct) And if 25th... (5 Replies)
Discussion started by: System Admin 77
5 Replies

9. Shell Programming and Scripting

Cron Job to Run for 30 minutes

Hello Gurus, I have a requirement to run a job from cron only for 30 minutes duration daily twice at 8.35 am and 20.35 pm Can you please suggest how to schedule the job? Thanks- Pokhraj (5 Replies)
Discussion started by: pokhraj_d
5 Replies

10. Shell Programming and Scripting

Cron job cannot run the command

Hi, I created this cron job for asterisk to send sms daily to a number #!/bin/sh #custom mod - send sms once a day, at 07:00. CRON_PATH="/etc/asterisk/gw/crontabs_root"; if ! grep 'gsm send sms' $CRON_PATH > /dev/null 2>&1 ;then echo "* 7 * * * asterisk -rx 'gsm send sms 1 7666... (4 Replies)
Discussion started by: jazzyzha
4 Replies

LEARN ABOUT POSIX

queuedefs

queuedefs(4)                                                       File Formats                                                       queuedefs(4)

NAME

       queuedefs - queue description file for at, batch, and cron

SYNOPSIS

       /etc/cron.d/queuedefs

DESCRIPTION

       The queuedefs file describes the characteristics of the queues managed by cron(1M). Each non-comment line in this file describes one queue.
       The format of the lines are as follows:

              q.[njobj][nicen][nwaitw]

       The fields in this line are:

       q        The name of the queue. a is the default queue for jobs started by at(1); b is the default queue for jobs  started  by  batch  (see
                at(1)); c is the default queue for jobs run from a crontab(1) file.

       njob     The  maximum  number of jobs that can be run simultaneously in that queue; if more than njob jobs are ready to run, only the first
                njob jobs will be run, and the others will be run as jobs that are currently running terminate.  The default value is  100.

       nice     The nice(1) value to give to all jobs in that queue that are not run with a user ID of super-user.  The default value is 2.

       nwait    The number of seconds to wait before rescheduling a job that was deferred because more than njob jobs were running in  that  job's
                queue, or because the system-wide limit of jobs executing has been reached.  The default value is 60.

       Lines beginning with # are comments, and are ignored.

EXAMPLES

       Example 1: A sample file.

       #
       #
       a.4j1n
       b.2j2n90w

       This  file  specifies that the a queue, for at jobs, can have up to 4 jobs running simultaneously; those jobs will be run with a nice value
       of 1.  As no nwait value was given, if a job cannot be run because too many other jobs are running cron will wait 60 seconds before  trying
       again to run it.

       The  b  queue, for batch(1) jobs, can have up to 2 jobs running simultaneously; those jobs will be run with a nice(1) value of 2.  If a job
       cannot be run because too many other jobs are running, cron(1M) will wait 90 seconds before trying again to run it. All  other  queues  can
       have up to 100 jobs running simultaneously; they will be run with a nice value of 2, and if a job cannot be run because too many other jobs
       are running cron will wait 60 seconds before trying again to run it.

FILES

       /etc/cron.d/queuedefs           queue description file for  at, batch, and  cron.

SEE ALSO

       at(1), crontab(1), nice(1), cron(1M)

SunOS 5.10                                                          1 Mar 1994                                                        queuedefs(4)
All times are GMT -4. The time now is 07:45 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy