It is about linux

1. What command would you run to get detailed information about how to use the `ln` command?

2. How would you find the option that causes the `ln` command to make symbolic links? What is that option?

3. What steps would you take to find out what the --si option to the `ls` command does? What does it do?

4. What command would you run to discover the command to compile a C program? Using those results, what is the command to compile a C program?