How to create UNIX / Linux commands?

Question

I'm looking to create my own Unix / Linux commands using C programming. Let's say for example. I wrote a simple file copy program, I would like to make it as a Unix / Linux command.

How can I do it?

Answer 1

Any executable file placed in a directory that is in the PATH (shell) variable will be a Unix command.

Answer 2

• Write your code using stdin , stdout and stderr to allow it to run from the command line and print its output
• Parse the command line arguments and use them (if you need to)
• Compile binary
• Search in any directory in PATH (e.g. / usr / sbin)