Links to tutorials please?

[Calum]

well i still haven't got round to starting that bash shell scripting tutorial that void main linked to (but i will) however i just wondered if anybody knew of any useful roundup of how exactly to administrate groups? It's something i would just like to read through, how to add, remove, change, rename groups, how to add users and remove users from a group, how to do whatever other tricks people have thought of for groups. I know there are some things i would learn from such a rundown.

So far this one is the best one i can find:
http://empyrean.lib.ndsu.nodak.edu/~nem ... oc/solgrp/
it's for solaris, i imagine i would simply ignore the GUI bits.

while looking i found this excellent one:
http://www.oreilly.com/catalog/esa2/chapter/ch03.html
it's a pot pourri of handy tips - no groups though,

so no big deal but if anybody knows of a good tutorial suitable for reading on the train home that fully explains the administration of groups, do post here!

no hurry, and no hassle, don't waste time on it, i got google out already, but it keeps giving me a lot of linux user groups and stuff.

[Void Main]

The Solaris link does apply and most Linux distros do have graphical tools much like the Solaris "admintool". For instance in Red Hat 8/9 they have the "redhat-config-users" utility (also on the menu) that allow you to add/delete/modify users/groups. I believe KDE has a built-in user admin tool as well, but I still do this the old fashioned way because it works on all Linux and UNIX systems, that being editing the /etc/passwd and /etc/group file directly. Actually I usually only edit the files when modifying a user or group (in place of usermod/groupmod), to add or delete a user I use adduser/useradd/userdel, or groupadd/groupdel. These commands are fairly standard across all *NIX platforms. There are minor differences but a quick check of the man pages will bear that out.

Of course groups are there to allow you to group users for purposes of granting/revoking permissions.

More links:
http://www.redhat.com/docs/manuals/linu ... roups.html
http://www-h.eng.cam.ac.uk/help/tpl/unix/groups.html
http://www.astro.princeton.edu/fom-serv/cache/101.html
http://www.udel.edu/topics/os/unix/gene ... roups.html

[Calum]

thank you for looking those out for me, the princeton and delaware ones look like exactly what i need, i did turn up the other ones already i think (i think i remember seeing them) but their contents are laregly contained within my brain already!

once again thanks for replying so helpfully.