Shell script automation using cron which query's MySQL Tables Post: 303023678

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Top Forums Shell Programming and Scripting Shell script automation using cron which query's MySQL Tables Post 303023678 by Neo on Thursday 20th of September 2018 10:12:41 PM

09-20-2018

Administrator

First of all, your crontab entry does not schedule every 38 minutes:

Code:

38 * * * * /your/crontab/script.sh

That crontab entry executes at 38 minutes after the hour, every hour.

There are many examples of how to write a crontab entry in the man pages.

For example on linux:

https://www.unix.com/man-page/linux/5/crontab/

Quote:

EXAMPLE CRON FILE

Code:

# use /bin/bash to run commands, instead of the default /bin/sh
       SHELL=/bin/bash
       # mail any output to `paul', no matter whose crontab this is
       MAILTO=paul
       #
       # run five minutes after midnight, every day
       5 0 * * *       $HOME/bin/daily.job >> $HOME/tmp/out 2>&1
       # run at 2:15pm on the first of every month -- output mailed to paul
       15 14 1 * *     $HOME/bin/monthly
       # run at 10 pm on weekdays, annoy Joe
       0 22 * * 1-5    mail -s "It's 10pm" joe%Joe,%%Where are your kids?%
       23 0-23/2 * * * echo "run 23 minutes after midn, 2am, 4am ..., everyday"
       5 4 * * sun     echo "run at 5 after 4 every sunday"
       # Run on every second Saturday of the month
       0 4 8-14 * *    test $(date +%u) -eq 6 && echo "2nd Saturday"

Maybe you can review the examples and repost your idea for the correct crontab entry for us to review?

I am not the "kind of guy" to post solutions for people, as I prefer to lead people to learn to think and solve problems for themselves.

Quote:

SOAPBOX

If we just "give you the solution" then we are not teaching you to solve problems on your own; we are doing your work for you. We are here to teach and lead people to solutions, and to help them development themselves as unix/linux systems admins, developers, problem solvers and coders, not to do your work.

/SOAPBOX

Your reply describes a crontab entry that is different than your crontab entry.

Neo

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MYSQLBUG(1)						       MySQL Database System						       MYSQLBUG(1)

NAME

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SYNOPSIS

       mysqlbug

DESCRIPTION

       This program enables you to generate a bug report and send it to Oracle Corporation. It is a shell script and runs on Unix.

       The normal way to report bugs is to visit http://bugs.mysql.com/, which is the address for our bugs database. This database is public and
       can be browsed and searched by anyone. If you log in to the system, you can enter new reports. If you have no Web access, you can generate
       a bug report by using the mysqlbug script.

       mysqlbug helps you generate a report by determining much of the following information automatically, but if something important is missing,
       please include it with your message.  mysqlbug can be found in the scripts directory (source distribution) and in the bin directory under
       your MySQL installation directory (binary distribution).

       Invoke mysqlbug without arguments:

	   shell> mysqlbug

       The script will place you in an editor with a copy of the report to be sent. Edit the lines near the beginning that indicate the nature of
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AUTHOR

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MySQL 5.1							    04/06/2010							       MYSQLBUG(1)