select datas from an input file

I have a file containing a list of references and I want to run a script that will make the same action for each reference.

The input file changes every hour, it's why I want to use a script that can read in a file, record by record, and run a specific action for the reference readed.

Thanks for your help.

dde

i think implementing awk could solve ur problem... anywayz if u could be more clear abt ur problem, i think we could help u out with it