Linux : create a user if not exists

Smaine Kahlouch smainklh at gmail.com
Tue Aug 16 19:47:27 CEST 2011


Le 16/08/2011 17:56, Alexander Kapps a écrit :
> On 16.08.2011 16:57, smain kahlouch wrote:
>> Ok than you. You're right but it doesn't help me :
>> I replaced it :
>>
>> >>> def finduser(user):
>> ...     if pwd.getpwnam(user):
>> ...             print user, "user exists"
>> ...             return True
>> ...     return False
>> ...
>> >>> finduser('realuser')
>> realuser user exists
>> True
>> >>> finduser('blabla')
>> Traceback (most recent call last):
>>    File "<stdin>", line 1, in ?
>>    File "<stdin>", line 2, in finduser
>> KeyError: 'getpwnam(): name not found: blabla'
>
>
> Untested:
>
> def finduser(name):
>     try:
>         return pwd.getpwnam(name)
>     except KeyError:
>         return None
>
> if not finduser("myuser"):
>     print "creating user..."
> else:
>     print "user already exists"
>
>
> Has the advantage that finduser() returns the user details if needed.
>
>
> (BTW: Please don't top-post)

Ok Thank you all, that works perfectly :)

See you soon,
Sam



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