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Full Discussion: sudo is not working properly
Operating Systems Linux Red Hat sudo is not working properly Post 302540217 by pludi on Wednesday 20th of July 2011 03:51:25 AM
Old 07-20-2011
First, prefixing anything with '%' tells sudo to interpret that as a group, not a single user.
Second, as I said before: sudo doesn't automagically elevate your privileges. You have to invoke it explicitly in every instance you want to use it, regardless of what command you want to run or which file you want to edit. Unlike UAC it won't jump into your face every time you want to do something you don't have permissions for, but you'll have to tell it "Now I want to do something I'm not usually allowed to do".

For example: vi /etc/hosts throws an error, as you said, but sudo -e /etc/hosts or sudo vi /etc/hosts will let you do that, since you're explicitly invoking sudo to allow access.
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LEARN ABOUT DEBIAN

viewsudo

VIEW-OS(1)						      General Commands Manual							VIEW-OS(1)

NAME

       viewsudo - execute a command as another (virtual) user

SYNOPSIS

       viewsudo [-g groupname|#gid] [-u username|#uid] command

DESCRIPTION

       viewsudo allows a user to execute a command as the superuser or
	      another user in View-OS.

OPTIONS

       viewsudo accepts the following command line options:

       -g group
	   Normally,  viewsudo	sets the primary group to root.  The -g option causes sudo to run the specified command with the primary group set
	   to group.  To specify a gid instead of a group name, use #gid.  When running commands as a gid, many shells require	that  the  '#'	be
	   escaped  with  a  backslash	('[u2019]).   If  no -u option is specified, the command will be run as the invoking user (not root).	In
	   either case, the primary group will be set to group.

       -u user
	   The -u option causes viewsudo to run the specified command as a user other than root.  To specify a uid instead of  a  user	name,  use
	   #uid.  When running commands as a uid, many shells require that the '#' be escaped with a backslash ('[u2019]).

RETURN VALUES

       Upon successful execution of a program, the exit status from viewsudo will simply be the exit status of the program that was executed.

SEE ALSO

       viewsu(1), sudo(1), linux.defs(5)

AUTHORS

       View-OS is a project of the Computer Science Department, University of Bologna. Project Leader: Renzo Davoli.
       <http://www.sourceforge.net/projects/view-os>

       Howto's and further information can be found on the project wiki <wiki.virtualsquare.org>.

NOTE

       Most part of the text is taken from sudo(1).

VIEW-OS: a process with a view					  August 8, 2009							VIEW-OS(1)
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