how to modify system files ?

when I want to run a program under linux, I have to input ./ before my program name, e.g., ./test. how to avoid inputing "./" by modify system files?

所有跟帖： 

• 回複：how to modify system files -NetLooker- ♀ (168 bytes) () 06/17/2004 postreply 12:06:23

• 回複：回複：how to modify system files -bash- ♀ (20 bytes) () 06/17/2004 postreply 12:31:36