libclntsh error

We are able to successfully run sqlplus from an NT client and on the host machine (Solaris 2.7) where Oracle is installed. However when I try to run sqlplus from other unix clients I get the message :
ld.so.1: sqlplus: fatal: libclntsh.so.1.0: open failed:

                         No such file or directory

I recall somebody talking about a utility called genclntsh.

Would anyone know whether this would fix the above problem. I am not much of a unix guru so I would appreciate some feedback on what this utility actually does (does it cause anything to break ?)

TIA

-- 
Michael McGarrigle   	 Michael.McGarrigle_at_BarwonWater.Vic.Gov.Au
Information Systems      Barwon Water
61-67 Ryrie St Geelong   Phone: +61 352 262326
Victoria 3220 Australia  Fax:   +61 352 218236