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Top Forums UNIX for Advanced & Expert Users SU command in non interactive mode Post 302209399 by tekjunky on Thursday 26th of June 2008 08:17:37 PM
Old 06-26-2008
Since you did not mention using su with a new username or ssh I am assuming:

A. you are not concerned with remote systems
B. you are referring to using 'su' to switch to the root user
C. you have the root password to do so


the simple solution here is sudo.

as root (use 'su' regularly the first time) issue the 'visudo' command to edit the '/etc/sudoers' file. Add a line like:

%wheel ALL=(ALL) NOPASSWD: ALL

visudo will open the file in vi/vim.

now add your user to the wheel group:

usermod -G <username>

where <username> is your username and NOT root.


now to su to root without a password simply type the command 'sudo su -' and to run a command as root without switching to root just type 'sudo <command of choice>'


cheers!
 

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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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