Prev: dhcpd.conf setup
Next: prism 2.5 chipset config. 4 ubuntu
From: Michael Heiming on 19 Jun 2006 17:31
In comp.os.linux.networking Ross <nospam(a)ross.com>:

> "Bit Twister" <BitTwister(a)mouse-potato.com> wrote in message
>> On Mon, 19 Jun 2006 16:42:01 -0400, Ross wrote:
>>> Hi there,
>>> I am going to create 9000 users.
[ short bash script to do it ]

>> http://tldp.org/LDP/abs/html/index.html

> Thanks a lot for your idea!
> But the $user comes with new line. The output is like this:
> user_1^M:x:1001:1000::/home/user_1^M:/bin/bash
> user_2^M:x:1002:1001::/home/user_2^M:/bin/bash
> :

> How could I eliminate the ^M?

Don't keep your files on a doze box, those can't even handle a
text file probably, as you just encountered. Alternatively run
'dos2unix' over the file.

Good luck

BTW
There's no need to create shadow + groups if you just use
'useradd' for the job.

--
Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
mail: echo zvpunry(a)urvzvat.qr | perl -pe 'y/a-z/n-za-m/'
#bofh excuse 223: The lines are all busy (busied out, that is --
why let them in to begin with?).
From: Chris F.A. Johnson on 19 Jun 2006 17:41
On 2006-06-19, Ross wrote:
>
> "Bit Twister" <BitTwister(a)mouse-potato.com> wrote in message
> news:slrne9e3oo.bp7.BitTwister(a)wb.home.invalid...
>> On Mon, 19 Jun 2006 16:42:01 -0400, Ross wrote:
>>> Hi there,
>>> I am going to create 9000 users.
>>> I have all the user names in a txt file userlist.txt like this:
>>> user_1
>>> user_2
>>>:
>>> user_9000
>>>
>>> I want the passwd file to be created like this:
>>> user_1:x:1001:1000::/home/user_1:/bin/bash
>>> user_2:x:1002:1000::/home/user_2:/bin/bash
>>>:
>>> user_1000:x:1001::/home/user_2000:/bin/bash
>>>:
>>> user_9000:x:1009::/home/user_9000:/bin/bash
>>
>> looks like a simple while loop with two counters.
>>
>> _uid=1000
>> _gid=999
>> while read user ; do
>> _uid=$(( $_uid + 1 ))
>> _gid=$(( $_gid + 1 ))
>> echo $user:x:$_uid:$_gid::/home/$user:/bin/bash >> /tmp/passwd
>> done < user_fn_here

[please don't top post]

> Thanks a lot for your idea!
> But the $user comes with new line. The output is like this:
> user_1^M:x:1001:1000::/home/user_1^M:/bin/bash
> user_2^M:x:1002:1001::/home/user_2^M:/bin/bash
>:
>
> How could I eliminate the ^M?

In bash:

CR=$'\r'
user=${user%"$CR"}

The script will be much faster in awk; see below.

> In addition, I'd like to have users grouped like this: gid:1000 for users
> user_1 to user_1000, and gid:1001 for users from user_1001 to user_2000,
> etc.

awk -v uid=1000 -v gid=999 '
NR % 1000 == 1 { ++gid }
{ sub( "\r","")
printf "%s:x:%d:%d::/home/%s:/bin/bash\n", $1, ++uid, gid, $1
}
' userlist.txt >> /etc/passwd


--
Chris F.A. Johnson, author <http://cfaj.freeshell.org>
Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
===== My code in this post, if any, assumes the POSIX locale
===== and is released under the GNU General Public Licence
From: Bit Twister on 19 Jun 2006 18:16
On Mon, 19 Jun 2006 17:19:33 -0400, Chris F.A. Johnson wrote:
> You will also have to create a shadow file.

Then there is creating home directory, copy initial user files from
/etc/skel, set owner/group userX,...... :(


From: Bit Twister on 19 Jun 2006 18:22
On Mon, 19 Jun 2006 17:16:37 -0400, Ross wrote:
>
> In addition, I'd like to have users grouped like this: gid:1000 for users
> user_1 to user_1000, and gid:1001 for users from user_1001 to user_2000,
> etc.

Use an if statement around the code bumping the group id to decide
when to bump the group variable.



From: Chris F.A. Johnson on 19 Jun 2006 19:05
On 2006-06-19, Michael Heiming wrote:
> In comp.os.linux.networking Ross <nospam(a)ross.com>:
>
>> "Bit Twister" <BitTwister(a)mouse-potato.com> wrote in message
>>> On Mon, 19 Jun 2006 16:42:01 -0400, Ross wrote:
>>>> Hi there,
>>>> I am going to create 9000 users.
> [ short bash script to do it ]
>
>>> http://tldp.org/LDP/abs/html/index.html
>
>> Thanks a lot for your idea!
>> But the $user comes with new line. The output is like this:
>> user_1^M:x:1001:1000::/home/user_1^M:/bin/bash
>> user_2^M:x:1002:1001::/home/user_2^M:/bin/bash
>> :
>
>> How could I eliminate the ^M?
>
> Don't keep your files on a doze box, those can't even handle a
> text file probably,

s/probably/properly/

There is nothing improper about a Windows text file; the standard
allows CR/LF line endings.

> as you just encountered. Alternatively run
> 'dos2unix' over the file.


--
Chris F.A. Johnson, author <http://cfaj.freeshell.org>
Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
===== My code in this post, if any, assumes the POSIX locale
===== and is released under the GNU General Public Licence
First  |  Prev  |  Next  |  Last
Pages: 1 2 3 4 5
Prev: dhcpd.conf setup
Next: prism 2.5 chipset config. 4 ubuntu