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Old 09-25-2009, 11:13 AM   #1
scucci
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Can't run certain commands as SU


I'm logging in remotely via SSH with a local account and when I SU to get to root I get the following error: bash: service: command not found.

After logging into the server via the console as root I'm able to restart the service. Any ideas?
 
Old 09-25-2009, 11:36 AM   #2
ordinary
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Here's just a guess:

su changes user ID but not environment. The "-" option gives you the environment of the new user. "su earl" gives you the user ID "earl" but not earl's environment. "su - earl" gives you the user ID "earl" along with earl's environment.

When you run su without the "-" you do, indeed, get root privelege but not the root environment - not root's PATH, for example. So, try "su -". That'll give you root privelege and root's environemnt. Service is in /sbin or /usr/sbin or some place like that that isn't on a typical user's PATH, but is on root's PATH.

Last edited by ordinary; 09-25-2009 at 11:41 AM.
 
Old 09-26-2009, 10:07 AM   #3
scucci
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Quote:
Originally Posted by ordinary View Post
So, try "su -". That'll give you root privelege and root's environemnt.
That was it, thank you!! Is the path the only thing that would have changed from not having roots environment? What else would have been different.

Thanks again!!
 
Old 09-26-2009, 10:19 AM   #4
pixellany
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A user's environment includes a variety of things--I can't get to a terminal at the moment, but I think the "env" command shows the whole picture.
 
Old 09-27-2009, 01:39 PM   #5
scucci
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Understood. Thank you all for your quick replies!!
 
Old 09-27-2009, 04:37 PM   #6
alar
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The biggest difference I ever notice between su and su - is access to the commands in /sbin.
If I can't access it, then I think oops did I su -?
 
Old 09-27-2009, 09:33 PM   #7
pixellany
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Quote:
Originally Posted by alar View Post
The biggest difference I ever notice between su and su - is access to the commands in /sbin.
If I can't access it, then I think oops did I su -?
this of course depends on how your PATH variable is setup---right?
 
  


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