Read getopt code to learn C easily and get familiar with ARGV and ARGC.

github.com/mrd...
replit.com/@xa...
Even if you learn the theory of pointers and arrays, the field staff will feel that there is a gap between them and practical coding. How does a beginner actually become an intermediate and get paid well?　As a hint, we will read some simple open source code and look at how pointers are actually used and how they differ from arrays.