Problems with imp

Hi

I was triying import a dmg file in Oracle 10g Express Edition in SQLPLUS. I'm usig something like this

imp valija_user/valija_at_local file=C:\liverpool\location.dmp;

But appears me an error like this "unknown command beginning "imp sys...." - rest of line ignored."

Somebody knows if the imp is supported on Oracle 10g Express Edition and if is supported how can i use it to impor a dmp file Received on Thu Nov 23 2006 - 13:38:45 CST