@Hammadi dali
IMHO. This problem has nothing to do with HP-UX and/or the solution link posted.
@SystemAddict
Pleae post exactly (to the decimal point) what Linux Operating System and version you are running and a lot lot more about what software you are trying to run, what you typed, what you expected to happen, and what actually happened.
I may not be able to help you, but please provide detail for those who can.