Does anyone know a shell command that identifies the functions from a C file? Thank you

What are you trying to do - list functions in C source? Or in compiled binaries?

I want to get all the names of the functions from a C source file, by using a shell command.

There isn't a shell command that does that.

You need special software to parse the code. You can use splint to get information like that. Download it here:

http://www.splint.org/download.html

ok, thank you, I was told that there is such a command... my mistake. And thanks again for the link.

You could write a very complex shell script to find all occurrences of2words that come just before an open parenthesis, then do a unique sort on those words. Then you have to find a way to remove all of the external functions.

However, coders do funny things with declarations that really confuse a script. Generally, you need to write a lexer (lex & yacc) to parse source code correctly.