Script to organize passwd and group

[Kyrre Nygard]

Hello!

I was wondering if anybody out there share the same need as I do
to better organize /etc/passwd and /etc/group.

I would like to see chronologic ordering of UIDs and GIDs, instead of
having them sorted by what ports their corresponding daemons run on.

Look below how much more flow it all gets.

Then, if possible, it would be cool to make 3 distinct classes:

01 Necessities, with 1 to 2 digit IDs

(maybe keep nobody seperate)

02 Servers, with 3 digit IDs
03 Users, with 4 digit IDs

I'm aware that when adding new users, one would manually have to
rearrange, but this is not because you shouldn't, it's because
adduser and pw doesn't yet support this kind of order.

Here is my ideal setup:

--

# cat /etc/.passwd

root:*:0:0::0:0:Core:/root:/usr/local/bin/zsh
daemon:*:1:1::0:0:System Processes:/root:/usr/sbin/nologin
operator:*:2:2::0:0:Operator:/:/usr/sbin/nologin
kmem:*:3:65533::0:0:KMem:/:/usr/sbin/nologin
bin:*:4:4::0:0:Binaries:/:/usr/sbin/nologin
tty:*:5:65533::0:0:Titty:/:/usr/sbin/nologin
news:*:6:6::0:0:News:/:/usr/sbin/nologin
man:*:7:7::0:0:Manuals:/usr/share/man:/usr/sbin/nologin

nobody:*:55555:55555::0:0:Unprivileged:/nonexistent:/usr/sbin/nologin

sshd:*:101:101::0:0:Secure Shell:/var/empty:/usr/sbin/nologin
www:*:102:102::0:0:World Wide Web:/usr/local/www:/usr/sbin/nologin
ftp:*:103:103::0:0:File Transfer Protocol:/home/websites:/usr/sbin/nologin
mysql:*:104:104::0:0:MySQL:/var/db/mysql:/sbin/nologin
proxy:*:105:105::0:0:Packet Filter:/nonexistent:/usr/sbin/nologin
smmsp:*:106:106::0:0:Sendmail 
Submission:/var/spool/clientmqueue:/usr/sbin/nologin
mailnull:*:107:107::0:0:Sendmail Default:/var/spool/mqueue:/usr/sbin/nologin
postfix:*:108:108::0:0:Postfix:/var/spool/postfix:/usr/sbin/nologin
cyrus:*:109:109::1111874400:0:Cyrus:/nonexistent:/usr/sbin/nologin
spamd:*:110:110::0:0:SpamAssassin:/var/spool/spamd:/sbin/nologin
vscan:*:111:111::0:0:Scanner:/var/amavis:/bin/sh
clamav:*:112:112::0:0:ClamAV:/nonexistent:/usr/sbin/nologin

kyrre:*:1001:0::0:0:Kyrre:/home/kyrre:/usr/local/bin/zsh
nomad:*:1002:1002::0:0:Hednod:/home/nomad:/usr/local/bin/zsh
polvott:*:1003:1003::0:0:Thomas:/home/polvott:/usr/local/bin/zsh
nughaud:*:1004:1004::0:0:King:/home/nughaud:/usr/local/bin/zsh

--

# cat /etc/group

wheel:*:0:root
daemon:*:1:
operator:*:2:root
kmem:*:3:
bin:*:4:
tty:*:5:
news:*:6:
man:*:7:

nobody:*:55555:

sshd:*:101:
www:*:102:
ftp:*:103:
mysql:*:104:
proxy:*:105:
smmsp:*:106:
mailnull:*:107:
postfix:*:108:
cyrus:*:119:
spamd:*:110:
vscan:*:111:
clamav:*:112:

nomad:*:1002:
polvott:*:1003:
nughaud:*:1004:

--

The script would rearrange passwd and group into classes, based on a
predefined list maybe. Then it should renumber the UIDs and GIDs.

Then it should do something like:

find -s / -uid foo | xargs chown bar
find -s / -gid foo | xargs chgrp bar

And before you know it :)

Your system will be looking tighter than ever!

I hope somebody can help me with this. It will take me at least a year,
I've estimated, until I master Ruby well enough to do stuff like this.

All the best,
Kyrre