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Also, is there a way in a script to run certain commands as root, but run other commands without root permissions. &nbsp;I've got some other scripts and programs that root can't run (part of a POS), but I need root permissions to restart the PPP. &nbsp;
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Do I need to add both the user ALL=/path/to/modem-script AND user ALL=(modem) /path/to/modem-script? &nbsp;Or is the second if I only want user modem to be able to use sudo /path/to/modem-script?
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You have one or the other.<br />
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If the modem-script needs to run a a non-root user, say 'modem', then use the second configuration.
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I've got a script that runs when a user logs in (Login=modem, which executes script modem which restarts PPP), is it possible in that script after it restarts the PPP to actually login as another user? &nbsp;Basically, the user has to log out and log back in as 'modem' and then log back into their account, I'd like for them to only have to log out of their account and log in as modem which will restart the modem and log them back in to their own account.
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I've got a script that runs when a user logs in (Login=modem, which executes script modem which restarts PPP), is it possible in that script after it restarts the PPP to actually login as another user?  Basically, the user has to log out and log back in as 'modem' and then log back into their account, I'd like for them to only have to log out of their account and log in as modem which will restart the modem and log them back in to their own account.

Also, is there a way in a script to run certain commands as root, but run other commands without root permissions.  I&#39;ve got some other scripts and programs that root can&#39;t run (part of a POS), but I need root permissions to restart the PPP.  

Do I need to add both the user ALL=/path/to/modem-script AND user ALL=(modem) /path/to/modem-script?  Or is the second if I only want user modem to be able to use sudo /path/to/modem-script?

You have one or the other.

If the modem-script needs to run a a non-root user, say &#39;modem&#39;, then use the second configuration.

Script help.  Is it possible to login as a user from a script?

I&#39;ve got a script that runs when a user logs in (Login=modem, which executes script modem which restarts PPP), is it possible in that script after it restarts the PPP to actually login as another user?  Basically, the user has to log out and log back in as &#39;modem&#39; and then log back into their account, I&#39;d like for them to only have to log out of their account and log in as modem which will restart the modem and log them back in to their own account.

Kernel programming for Linux operating systems can be done with many different languages; C, C++, Python, Perl and Java, which are some of the most common languages used.There are also many different varieties of Linux, such as Ubuntu, Fedora and OpenSUSE.