Hello Perry,
Thanks a lot for replying my mail again.
Please find the answers of your questions below one by one.
--- On Thu, 8/21/08, Perry Smith <[EMAIL PROTECTED]> wrote:
From: Perry Smith <[EMAIL PROTECTED]>
Subject: Re: What is wrong with this script ??
To: [EMAIL PROTECTED]
Cc: "Mr. Shawn H. Corey" <[EMAIL PROTECTED]>, beginners@perl.org
Date: Thursday, August 21, 2008, 6:57 PM
I'm going to not CC beginners@perl.org after this point since I don't think
this is a perl question right now. Please speak up if you want to be included
in this thread.
I'm not sure you understood my previous question. I was asking if such things
as chgrp, chown, etc work from the shell -- not from perl.
Two questions right now:
1) Does everything else work except the chgrp command? For example, does the
chown work? (assuming you are logged in as root or you use sudo).
yes, everything else worked fine, except for the chgrp command. The output of
ls -l command si shown below: for a sample of 3 students,
drwxr-xr-x 2 s08-1-5-095 root 4096 2008-08-20 22:19 s08-1-5-095
drwxr-xr-x 2 s08-1-5-096 root 4096 2008-08-20 22:20 s08-1-5-096
drwxr-xr-x 2 s08-1-5-097 root 4096 2008-08-20 22:17 s08-1-5-097
Initially, I manually made a directory in my system for testing the commands
when I my perl script could not do for the same purpose.
step 1. I create the homedirectories with
mkdir s08-1-5-095
mkdir s08-1-5-096
mkdir s08-1-5-097
step2.
I changed the ownership with the help of
chown s08-1-5-095 /root/perl/s08-1-5-095
when I tried doing chgrp s08-1-5-095 /root/perl/s08-1-5-095
and others did nt work out.
2) Pick a user name that is in the LDAP server list s08-1-5-093 and do "id
usersId" e.g. "id s08-1-5-093" .. let me see the results.
the results of the "id userid" are as shown below:
[EMAIL PROTECTED] ~]# id s08-1-5-097
uid=3053(s08-1-5-097) gid=3053 groups=3053
[EMAIL PROTECTED] ~]# id s08-1-5-098
id: s08-1-5-098: No such user
[EMAIL PROTECTED] ~]# id s08-1-5-095
uid=3051(s08-1-5-095) gid=3051 groups=3051
[EMAIL PROTECTED] ~]# id s08-1-5-096
uid=3052(s08-1-5-096) gid=3052 groups=3052
[EMAIL PROTECTED] ~]#
At this juncture, I would like to tell you that, my ldap server does the
central authentication of the students logging into the any of the server
machines, where they are supposed to work on their home directories, which is
in this case -the cluster servers.
the thing is that, at first i wrote one perl script, where the chgrp did nt
work, and so i had been tryinng to do that manually too.
Now i am reading a book, on that, to find out the fallacies/ faults etc, to
find out the solution.
If you have any solution do let me know.
the rest part of your question, is not matching with my situation and so not
answering them.
The answer to the last pasrt of your question is shown below, where it shows
that it is an invalid group.
[EMAIL PROTECTED] perl]# mkdir tmp
[EMAIL PROTECTED] perl]# cd tmp
[EMAIL PROTECTED] tmp]# touch foo
[EMAIL PROTECTED] tmp]# ls
foo
[EMAIL PROTECTED] tmp]# chown s08-1-5-097
chown: missing operand after `s08-1-5-097'
Try `chown --help' for more information.
[EMAIL PROTECTED] tmp]# chown s08-1-5-097 foo
[EMAIL PROTECTED] tmp]# chgrp s08-1-5-097 foo
chgrp: invalid group `s08-1-5-097'
[EMAIL PROTECTED] tmp]# ls -l
total 0
-rw-r--r-- 1 s08-1-5-097 root 0 2008-08-21 19:27 foo
[EMAIL PROTECTED] tmp]#
The users are probably all in the same group. I'm hoping the id command will
give me that group. Some systems it will, others it will not.
Lets suppose the output from id is something like this:
uid=503(pedzan) gid=20(staff)
groups=20(staff),103(com.apple.sharepoint.group.3),98(_lpadmin),102(com.apple.sharepoint.group.2),501(perry),101(com.apple.sharepoint.group.1)
In this case the numeric value of the id is 503 and the numeric value of the
group is 20. Find your values for one of your users. Then (as root) try this:
cd /tmptouch foochown 503 foochgrp 20 fools -l foo
(the 20 and 503 will be replaced with the numbers you have). See if the ls
shows the proper owner/group.
On Aug 21, 2008, at 2:04 AM, Jyotishmaan Ray wrote:
Give some pointers as such to sort out this problem in my cluster servers
(fedora-linux) ?
--- On Thu, 8/21/08, Mr. Shawn H. Corey <[EMAIL PROTECTED]> wrote:
From: Mr. Shawn H. Corey <[EMAIL PROTECTED]>
Subject: Re: What is wrong with this script ??
To: "Perry Smith" <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED], beginners@perl.org
Date: Thursday, August 21, 2008, 4:07 AM
On Wed, 2008-08-20 at 17:25 -0500, Perry Smith wrote:
> I would first verify that you can do what you need to do
with one
> individual directory from the shell. i.e. make sure you can chown,
> chgrp, and chmod -- what ever other commands you are needing to do.
On many *NIX systems, commands like chown and chgrp are restricted so
that you cannot steal quotas. Only sudo users can run them.
--
Just my 0.00000002 million dollars worth,
Shawn
"Where there's duct tape, there's hope."
Cross Time Cafe
"Perl is the duct tape of the Internet."
Hassan Schroeder, Sun's first webmaster
