06-06-2011
How do I create a shell script that would generate a system notification.
I am a student, and I have project to complete. The project is to create a power point presentation with the following guidelines:
You are the system admin for a medium sized Internet company that has its primary production web server running on UNIX/Linux. Your technical IT director would like for you to do a presentation on a system admin task that you have automated with the use of the shell (your choice of shell, Bourne, C, Korn, Bash, etc...). I would like to have a system notification that will come up if a user logs on within 4 hours of a schedualed system maintenece down time, and again 30 minutes before the down time, that would state " A schedualed system maintenence will begin at 2:00 am. Please please save and exit any web based applications by 1:55 am in order to avoid loss of data."
Can any of you give me an idea of how to create this type of shell script?
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LEARN ABOUT OSF1
uudemon.cleanu
uudemon(4) Kernel Interfaces Manual uudemon(4)
NAME
uudemon.admin, uudemon.cleanu, uudemon.hour, uudemon.poll - Administrative shell scripts for polling remote systems, cleaning up spool
directories, reporting status to the system administrator, and routine invocations of the uuxqt and uusched daemons
SYNOPSIS
These shell scripts reside in the following directory:
/usr/lib/uucp
DESCRIPTION
All the scripts can be run from the command line or can be run automatically by the cron daemon. To automatically run the scripts, remove
the comment character (#) from the beginning of the relevant line in the /var/spool/cron/crontabs/uucp file.
This script reports status to the system administrator. It issues the uustat command to find out the status of uucp jobs. It mails the
results to the uucp login ID. The script may be modified to send mail to any login ID such as the uucp administrative login ID (uucpa) or
root. This script cleans up the /var/spool/uucp and /var/spool/uucppublic directories by running the uucleanup command. The uucleanup com-
mand is run with the following parameters: -C7, -D7, X2, -o2, -W1. This script runs the uusched and uuxqt daemons in the background. This
script polls the systems listed in the /usr/lib/uucp/Poll file. The uudemon.poll script should be scheduled before the uudemon.hour
script. This allows uudemon.poll to create any command files before cron runs the uudemon.hour script.
FILES
Contains the uudemon.admin, uudemon.cleanu, uudemon.hour and uudemon.poll files. Contains the uucp file.
RELATED INFORMATION
Commands: cron(8), uucleanup(8), uusched(8), uuxqt(1)
Files: /usr/lib/uucp delim off
uudemon(4)