How to write file containing shell script?

Hi, I am trying to write a file that contains a shell script. The file writes to the server but when I try to execute it it fails with a command not found error. But if I copy and paste the files contents into a new text file using Textpad on my PC and upload it to the same directory it works?! It is not related to permissions as both files are 777 and I am root? The only difference I could tell is when I compare the files in Textpad although the contents are identical, the failed file is slightly larger and has a file type of "Netscape" in the File Properties while the other has a file type of "PC"? Any ideas? --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.343 / Virus Database: 190 - Release Date: 3/22/02