01-30-2009
Help with file permissions and file ownerships
Hi,
I've a query regd file permissions and file ownerships.
Say for example i've 2 users - user1 and user2, then
a. The ownership of the files created by user1 has to be transferred to user2
b. File permissions has to be set such that user2 only has read,write,execute permissions and all others has only read access.
I guess using chown and chgrp, we can change the ownership of the files (please correct me if any other method is available). But how to set file permissions also as required.
Kindly appreciate your help in this.
Thank You.
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LEARN ABOUT DEBIAN
dspam_clean
dspam_clean(1) DSPAM dspam_clean(1)
NAME
dspam_clean - perform periodic maintenance of metadata
SYNOPSIS
dspam_clean [--profile=PROFILE] [-s[signature_life]] [-p[probability_life]] [-u[sl,hcl,shl,ihl]] [user1 user2 ... userN]
DESCRIPTION
dspam_clean is used to perform periodic housecleaning on DSPAM's metadata dictionary by deleting old or useless data.
OPTIONS
--profile=PROFILE
Specify a storage profile from dspam.conf. The storage profile selected will be used for all database connectivity. See dspam.conf
for more information.
-s Performs stale signature purging. If a value is specified, the default value of 14 days will be overridden. Specifying an age of 0
will delete all signatures from the user(s) processed.
-p Deletes all tokens from the target user(s) database whose probability is between 0.35 and 0.65 (fairly neutral, useless data). If a
value is specified, the default life of 30 days will be overridden. It's a good idea to use this flag once with a life of 0 days for
users after a significant amount of corpus training.
-u Deletes all unused tokens from a user's dataset. Four different life values are used:
sl Stale tokens which have not been used for a long period of time
hcl Tokens with a total hit count below 5 (which will be assigned a hapaxial value by DSPAM)
shl Tokens witha single spam hit
ihl Tokens with a single innocent hit
Ages may be overridden by specifying a format string, such as -u30,15,10,10 where each number represents the respective life. Speci-
fying a life of zero will delete all unused tokens in the category.
user1 user2 ... userN
Specify the username(s) to perform the selected maintenance operations on. If no username is specified, all users are processed.
EXIT VALUE
0 Operation was successful.
other Operation resulted in an error.
COPYRIGHT
Copyright (C) 2002-2011 DSPAM Project
All rights reserved.
For more information, see http://dspam.sourceforge.net.
SEE ALSO
dspam(1), dspam_admin(1), dspam_crc(1), dspam_dump(1), dspam_logrotate(1), dspam_merge(1), dspam_stats(1), dspam_train(1)
DSPAM
Apr 17, 2010 dspam_clean(1)