12-18-2008
Quote:
Originally Posted by
melias
are you able to provide details of the script you're running via cron?
What details would you nedd?
The jist of it is it uses the sudo command to change the permissions of a file, making it writable, then empties the contents of said file (cat > /dev/null).
So without the sudo command, the file cannot be emptied.
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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)