[ubuntu] Calling executable from different directory than working directory

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http://ubuntuforums.org – Hi all. I'm somewhat confused about some instructions I was given. I have a directory called "train" and within that a subdirectory called "trainA." "train" contains numerous files including a specific executable file, and what I'm assuming are a bunch of dependencies for it, since I had to run "make" in the directory before using. the "trainA" directory is generated upon running of a perl module (GlimmerHMM, in case anyone is wondering, but I don't think it matters so much). Anyway, I'm having an error and was told to run: "scoreSTOP t (Hardware)