Here is a quick UNIX command summary to get you started.

[Commands]

• ls - list directory contents
• rm - remove a file or directory entries
  Example: neptune% rm filename.f
• cd - change directory
• pwd - print working directory (displays the current directory)
• pico - simple UNIX text editor

[Compiling and Running Fortran]

• g77 - compile Fortran source file
  Example: neptune% g77 hello.f -o hello
• Running binary executable file: ./hello