[TxMt] Ruby Run Script errors

Hi, I recently got interested in starting to learn ruby. Since then I have done a few things. I have installed the newest ruby (1.8.4) to my /usr/local/bin/ . I also learned about TextMate, so I went and downloaded it. I played around with it and noticed that i could run the ruby script within textmate using Run Script. However, when I do this, i get two errors. One is /bin/bash: line 3: cat: command not found. This is at the beginning. After it says program exited normally, it says /bin/bash: line 8: rm: command not found. Also, it doesn't show any of the script as having run normally (didn't output anything). Does anyone know whats wrong? Thanks!