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Top Forums Programming How to access a C function from a shell script? Post 302979195 by Don Cragun on Wednesday 10th of August 2016 03:53:00 PM
Old 08-10-2016
I didn't say that writing a C compiler in shell was annoying; I said that shell is the wrong language to use to write a C compiler.

Of course, another option would be to write an emulator for the CPU and GPU you're using to execute the program you want to trace, trap the various multiplication instructions supplied by those chips, and capture the operands that those instructions will process. Again, the shell programming language is not a good choice for this project.

Your specifications for what you are trying to do are still extremely vague, but this is not the kind of major research project you are likely to find lots of volunteers in a forum like this to help you. If you produce a clear specification of what you're trying to do, show us that you have written a significant amount of code working towards you goal, and you get stuck on something, we'll be glad to help you get around your roadblocks. If you want us to design and write a project like this for you, I doubt that you'll find any volunteers here to do that for you.

I wish you good luck.

PS: Note that I also advised a friend about 35 years ago that COBOL wasn't a good language to use to write an operating system as a class project, but she did it anyway and got an A in the class. Note also that she was an expert in COBOL and had developed a detailed specification of exactly what that operating system was supposed to do.
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shell(1F)							   FMLI Commands							 shell(1F)

NAME
shell - run a command using shell SYNOPSIS
shell command [command] ... DESCRIPTION
The shell function concatenate its arguments, separating each by a space, and passes this string to the shell ($SHELL if set, otherwise /usr/bin/sh). EXAMPLES
Example 1: A sample output of shell command. Since the Form and Menu Language does not directly support background processing, the shell function can be used instead. `shell "build prog > /dev/null &"` If you want the user to continue to be able to interact with the application while the background job is running, the output of an exe- cutable run by shell in the background must be redirected: to a file if you want to save the output, or to /dev/null if you don't want to save it (or if there is no output), otherwise your application may appear to be hung until the background job finishes processing. shell can also be used to execute a command that has the same name as an FMLI built-in function. NOTES
The arguments to shell will be concatenate using spaces, which may or may not do what is expected. The variables set in local environments will not be expanded by the shell because "local" means "local to the current process." ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
sh(1), attributes(5) SunOS 5.10 5 Jul 1990 shell(1F)
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