Final answer:
To determine the name of the operating system in a UNIX-like environment, the command to use is uname -o. This command is designed to provide the official name of the operating system. Hence, the correct answer is 3) uname -o.
Step-by-step explanation:
The question pertains to identifying which command reveals the name of the operating system in a UNIX-like environment. To find out the name of the operating system, the command uname -o is used. Here is a breakdown of what each command option for uname does:
- uname -n displays the network node hostname.
- uname -r shows the kernel release.
- uname -o reveals the operating system name.
- Therefore, the correct answer is 3) uname -o.