Automation script

I need someone to write a script (csh, sh, bash, or perl) that automates the steps listed here [login to view URL] . The script should 1) Complete all the steps specified at [login to view URL] 2) specify the download urls as script variables (so I can easily update them) 3) not download the files if they are already present, but have a switch to override this behavior 4) automatically execute the make install command displayed by the ATLAS make command in step 4 from item 1 5) automatically determine the system the user is running and copy the correct make file in step 6 from item 1 6) let the user specify the install prefix (something like --prefix=/usr or --prefix=/usr/local) 7) have a --help or -h switch that displays the correct usage of the script and describes each switch ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Unix or unix like systems