problems with date in opensuse 11.0

[georges raseev]

Hello,

I try to obtain the date of the system using the command:
date +%Y-%m-%d_%H-%M-%S

On a redhat system it gives the answer
2009-02-14_07-37-41

On Suse 11.0 it does not work giving
date: opérande surnuméraire `+%Y-%m-%d_%H-%M-%S'

The man of SUSE 11.0 says that
date +%Y-%m-%d_%H-%M-%S

is correct.

My installation is a standard SUSE 11.0 in 64 bits with utf-8.

Thank you for your help

Sincerely
-- 
Georges Raseev