Sponsored Content
Full Discussion: Crontab
Top Forums Shell Programming and Scripting Crontab Post 302595377 by guruprasadpr on Friday 3rd of February 2012 01:24:46 AM
Old 02-03-2012
Hi Akash
What the experts are trying to tell you is to achieve this requirement in 2 steps, not with cron alone.

Step 1: Have a cron entry as shown below:

Code:
00 12 * * 4 abc.sh

The above cron entry will schedule your script(abc.sh) to run every thursday. However, your requirement is to run only on 1st and 3rd thursday.

Step 2: Changes in the script in order to block it from running other than 1st and 3rd thursday. You can add a small snippet like this at the beginning of your script abc.sh

Code:
dt=`date '+%d'`
$ if [ $dt -ge 8 -a $dt -le 14 ] || [ $dt -gt 21 ]
then
 exit
fi

This code will exit if the date range is within 2nd week or 4th week which in other words, helps your script to run only on 1st and 3rd thursdays (code not tested).

Guru.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

crontab

Hi I have a shell script which works fine at the command line and does works in crontab also but does not send the output to mail as other scripts do by default. 10 1 * * * /export/home/test/report_script by default should send the output to mail but the script runs OK and the output... (1 Reply)
Discussion started by: run_time_error
1 Replies

2. UNIX for Dummies Questions & Answers

about crontab

dear all , does any one now how can i become sure that the crontab that i put was working successfully not by looking for thr result of the sheduled task but from a log for the crontab or something similar and i need to check that the cron i wrote is correct 00 15 * * 0,1,2,3,6... (2 Replies)
Discussion started by: habuzahra
2 Replies

3. UNIX for Dummies Questions & Answers

Crontab

How can I run "crontab" (parameters) every 6 hours on solaris machine? Thanks (1 Reply)
Discussion started by: gen4ik
1 Replies

4. Shell Programming and Scripting

help with crontab

i have a ksh script that creates messages in a temp directory and then sends them out using the sendmail command and i'm trying to set it up to run every night with crontab. So the basic gist of the script is #create temp dir and messages ... #loop through each message and send using sendmail... (3 Replies)
Discussion started by: bob122480
3 Replies

5. UNIX for Dummies Questions & Answers

crontab

hi all how to schedule the crontab file in unix? (2 Replies)
Discussion started by: ss4u
2 Replies

6. Shell Programming and Scripting

Using Crontab

Hi All, I've a shell script which calls a Sybase stored procedure to do some functionality. I want to schedule the running of this script by crontab. I'm using Solaris 5.8. When i executed the following command crontab -l i got the output as crontab: can't open your crontab file How... (10 Replies)
Discussion started by: sumesh.abraham
10 Replies

7. UNIX for Advanced & Expert Users

Crontab help

hi, I run a .sh file using crontab. I need to know the path of the file . Previously when I run the file alone , i used "pwd" but now when using crontab it gives the temp directory of the file. Is there any way I can find the absolute path of the file when i execute it ? Regards, Ranga (7 Replies)
Discussion started by: r_W213
7 Replies

8. UNIX for Advanced & Expert Users

Help regarding crontab

Dear All jobs are scheduled in crontab . To view this I use crontab -l . But suddenly today I am not able to see any jobs that is being scheduled in crontab. when I type crontab -l , I am seeing nothing.I am not logging through admin user(i dont have it).But I can schedule jobs through... (3 Replies)
Discussion started by: tkbharani
3 Replies

9. Shell Programming and Scripting

crontab

I have a crontab entry,but it is not working. Can anybody help me in this regard?? (2 Replies)
Discussion started by: Sourav_Paul
2 Replies

10. UNIX for Dummies Questions & Answers

at vs crontab

Hi, can someone explain the differences between using the at and crontab commands. When would you use one command over the other? TIA Dom (1 Reply)
Discussion started by: domburf69
1 Replies
apticron(1)						      General Commands Manual						       apticron(1)

NAME
apticron - Generate a mail listing packages which are pending an upgrade SYNOPSIS
apticron [--cron] DESCRIPTION
apticron is a shell script which generates a mail with a list of all packages currently pending an upgrade, as well as summary of changes - using apt-listchanges - to a configurable Email address. apticron is mainly intended for automatic notification of pending security updates but can also be used in many other situations where timely updates are necessary. The --cron option is only meant to be used when invoked by cron in order to run no more than once a day. FILES
/etc/apticron/apticron.conf Configuration file, Email address to mail and profile for use with apt-listchanges are configurable. /etc/cron.d/apticron Cron job for executing apticron daily. /etc/cron.daily/apticron Fallback cron script for executing apticron (if no crond running or system down at designated time). /var/lib/misc/apticron.cron Time stamp file used by apticron when invoked with --cron option. SEE ALSO
apt-get(8), apt-listchanges(1), cron(8) AUTHOR
Apticron was initially developed by Colm MacCarthaigh <colm.maccarthaigh@heanet.ie> with contributions from Marc Sherman <msherman@projec- tile.ca>. Since 2006 it is maintained and improved by Tiago Bortoletto Vaz <tiago@debian.org>. apticron(1)
All times are GMT -4. The time now is 11:55 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy