UNIX for Beginners Questions & Answers

HI

in a server we can't login with root user directly but i can login with different user and then i can switch to root user by

Code:

su command

Requirement

is there anyway where i can write a script without mentioning password in file as mentioning the root password is not the correct way due to security issue.

thx in advance

scriptor

Yes, using sudo utility but it is not installed/configured by default, you may have to install the software, and yes there are ways not using sudo, but I will not suggest as they are security breaches...

Yes, there are a few ways, not least:-I would be surprised if coding the root password in a script would work unless you use something like expect and I would agree that it is something to be avoided. There are other ways too, I'm sure.

Of the above, the use of sudo is most often used and it has the bonus that it writes a message to the syslog when you use it which auditors like too.



I hope that this helps,
Robin

This does not work for scripts on many UNIX/Linux platforms, only binary executables.

rbatte1 has the right idea, however - don't make a script escalate itself, that doesn't work the way you might think(You NEVER escalate your own process, all you can do is create a new process with a different login). Have it run with the permissions it needs in the first place. Or use sudo to run the commands in your script which actually need high-level access.