Create software/script (Mac OS X)

HI I want a software/script doing: Load a file, file contains IP-adresses. xml/json/csv format Test each IP adress for a file. i.e look for [login to view URL] look for [login to view URL] look for [login to view URL] if file contains a keyword (say "hello") try for two other files and save to a local folder. i.e [login to view URL] (file found) [login to view URL] (file found) [login to view URL] (file not found) [login to view URL] (file found) in a local folder i should have file1, file2, file2.