granting permission to tomcat

[vinodramu]

I need to find out the disk usage using the command du -chs directoryName.
I'm executing a shell script using java web application.
For this I need to grand the permission to "tomcat" for accessing the directory and shell script.

For eg:
My shell script is in /var/lib/tomcat-6/webapps/webapplictionPRJ/scripts/ directory
and I need to find out the disc usage of the directory /var/vpopmail/testDirectory.
The owner of directory '/var/vpopmail' is root and owner of directory '/var/vpopmail/testDirectory'
is vpopmail

Can anyone help me in granting permission to tomcat for accessing the directory using "visudo".

[Bones McCracker]

Depending on your use case, you may be able to find a more secure way of doing this. For example, you could run a cron job (as root). For example:
du -chs /var/vpopmail/testDirectory > /var/vpopmail/admin_data

Then your shell script could read the data without elevated privileges.

But if you want to go the sudoers route, I believe an entry like the following would suffice, and be as restrictive as possible. But I haven't tested that and you may have to fiddle with the syntax or something (see the 'sudoers' man page).