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Full Discussion: Switch user(su) two times
Operating Systems AIX Switch user(su) two times Post 302519449 by bakunin on Wednesday 4th of May 2011 03:32:13 AM
Old 05-04-2011
Quote:
Originally Posted by mtwain
ABC is an account which has sugroups=su2DEF and root is not part of su2DEF group.
Your question has already been answered by the others, but I'd like to comment on your scenario: root doesn't have to be in this group because for practial purposes root is per definition in every group there is: root can read/write any file or directory regardless of being in that particular group or not, because the normal group rights won't apply to root (to be precise: the user with UID=0).

What i want to say is: do you really need to switch away from root, given this information?

You might want to do it because the user you switch to is an application user with a very specific environment (databases often have such users) which root lacks. You also might want to do it because the process you start as this user creates some file(s) and you want these files owned by the user, not by root.

Therefore, you still might have a good reason to "su" away from root, but you might want to reestimate the need to so in light of above information.

BTW: you can su to another user for a single command with the "-c" switch. For instance:

Code:
#! /bin/ksh

# this script is started by root

/some/command_to_run_as_root

su - user1 -c /some/where/script_to_run_as_user1.sh
su - user2 -c /some/where/script_to_run_as_user2.sh

/some/other_command_to_run_as_root

exit

I hope this helps.

bakunin
Last edited by bakunin; 05-04-2011 at 04:37 AM..
 

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LEARN ABOUT OSX

dsenableroot

dsenableroot(8) 					    BSD System Manager's Manual 					   dsenableroot(8)

NAME

     dsenableroot -- enables or disables the root account.

SYNOPSIS

     dsenableroot [-d] [-u username] [-p password] [-r rootPassword]

DESCRIPTION

     dsenableroot sets the password for the root account if enabling the root user account.  Otherwise, if disable [-d] is chosen, the root
     account passwords are removed and the root user is disabled.

     A list of flags and their descriptions:

     -u username
	      Username of a user that has administrative privileges on this computer.

     -p password
	      Password to use in conjunction with the specified username.  If this is not specified, you will be prompted for entry.

     -r rootPassword
	      Password to be used for the root account.  If this is not specified for enabling, you will be prompted for entry.

EXAMPLES

     -dsenableroot
	      Your username will be used and you will be queried for both your password and the new root password to be set to enable the root
	      account.

     -dsenableroot -d
	      Your username will be used and you will be queried for only your password to disable the root account.

     -dsenableroot -u username -p userpassword -r rootpassword
	      The supplied arguments will be used to enable the root account.

     -dsenableroot -d -u username -p userpassword
	      The supplied arguments will be used to disable the root account.

Mac OS								  August 08 2003							    Mac OS
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