hello,
what is the command to have information about commercial server type ?
rgds
Do you mean
uname -a
always a good start.
I've already used it, but it contains only OS information
I want commercial information like "HP Prolian DL360" or "HP Prolian DL380" or another one...
TY
On linux, you can try 'dmidecode' (kernel-utils package on RH-based Linux), this shows a lot of information such Bios version, System information, S/N, etc.
Be careful to run this command on production environments, it can be buggy on some systems (it usually crashes some Dell servers).
Thanks a lot ! 
Rgds