script with super user

[dl01]

I want to add a script to my crontab to delete some logs that grow
very quickly on a weekly basis. Unfortunatlty when the files are
created only root has the delete privledges. How can I run a script
from a regular users login that will change to super user, delete the
files then change back?

 

[jared71]

I think you would do this by using setuid, but I wouldn't recommend this (security risk). It's more likely you would want to create a script that cron will run as root on a regular basis. This would run whether you logged into the system or not.

script:

#!/bin/sh
cd /var/logs
#please check the man page on find for exact syntax
find . -atime +45 -exec rm -r {} \;

how to enter into cron

# su
password:
(in csh or tcsh)
# setenv EDITOR vi (or your favorite editor)
# crontab -e

(the cron file will open in an editor, add the appropriate entry, such as run once a week, sunday at 11:30 am)

30 11 * * 0 /scripts/scriptname.sh


-jared

 

[mrn]

Take a look at sudo

http://www.kempston.net/solaris/sudo.html

It allows you to run one or more commands as any other user, and is a lot more secure than using setuid.

It's very easy to install & set-up

or could you not just add the remove stuff to root's crontab? --
| Mike Nixon
| Unix Admin
|

http://www.instantflashshop.com

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