What is the implementation process of helloworld in linux?

What is the implementation process of helloworld in linux? -- Linux general technology-Linux programming and kernel information. The following is a detailed description. I want to learn programming in linux, but I am really overwhelmed when no one teaches me. If you have any questions at the beginning of programming, I would like to ask you how to edit, compile, debug, and link c or c ++ hello world programs in linux, someone can give me a detailed process. How can I use emacs and gcc? Please advise.
In addition, the following results are displayed when I execute gcc-o hello. c according to many netizens. Why?:
Zhang @ zhang-laptop :~ $ Gcc-o hello. c
Gcc: hello. c: the file or directory does not exist.
Gcc: no input file