[SOLVED] Assign UID from a specific range via bash script

r34per · 09-03-2020, 07:35 PM

Hi all,

Hoping someone can help or point me in the right direction

I am looking to create a bash script to create local users using the ‘useradd’ command, however I need the accounts to be given a UID only from a certain range, so let’s say 1000-2000 and the UID also needs to be assigned backwards and counting down, so..

2000
1999
1998
etc..

Does anyone know a how I can achieve this?

I am running RHEL 7

Any help will be appreciated

berndbausch · 09-03-2020, 09:55 PM

The useradd command has the --uid option which allows you to create a new account with a specific ID.

You then need a while loop like this:

Code:

low=1000
uid=2000
while ((uid>low))
do
    useradd --uid $uid user$uid
    uid=$((uid-1))
done

Not tested.