<div>
So there is no way native to cron to accomplish what I want to do.<br />
<br />
I guess I can wrap it in a shell script that checks for the day of week and exits if it is the weekend.
</div>


So there is no way native to cron to accomplish what I want to do.

I guess I can wrap it in a shell script that checks for the day of week and exits if it is the weekend.

<div>
<div class="content wysiwyg-content">
I would like for a cron to run at 9 am Monday-Friday IF it is the 25th-&gt;31st of the month so I put in the following crontab:<br />
<br />
&nbsp; &nbsp; &nbsp;0 9 25-31 * 1-5 date &gt;&gt;&nbsp;/home/jamtal/datelog.txt<br />
<br />
The problem is that it runs at 9am Monday-&gt;Friday reguardless of the day of the month... <br />
<br />
Is this a known bug in crontab? &nbsp;I can't find any reference in the crontab manuals that this is an OR condition when other times it is an AND.<br />
<br />
I have tried this on a Redhat Linux and Solaris system with the same result.<br />
<br />
Thanks
</div>
</div>


I would like for a cron to run at 9 am Monday-Friday IF it is the 25th->31st of the month so I put in the following crontab:

     0 9 25-31 * 1-5 date >> /home/jamtal/datelog.txt

The problem is that it runs at 9am Monday->Friday reguardless of the day of the month... 

Is this a known bug in crontab?  I can't find any reference in the crontab manuals that this is an OR condition when other times it is an AND.

I have tried this on a Redhat Linux and Solaris system with the same result.

Thanks

UNIX Crontab running when not scheduled

Unix is a multitasking, multi-user computer operating system originally developed in 1969 at Bell Labs. Today, it is a modern OS with many commercial flavors and licensees, including FreeBSD, Hewlett-Packard’s UX, IBM AIX and Apple Mac OS-X. Apart from its command-line interface, most UNIX variations support the standardized X Window System for GUIs, with the exception of the Mac OS, which uses a proprietary system.

Unix OS

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.