Suppose we have the following terminal session univac:src graceh$ ls README.md main.c test.c util.c util univac:src graceh$ where $ indicates a command prompt. 1. What command, if typed at the prompt, would rename util.c to new.c? 2. What command, if typed at the prompt, would create the directory chi as a child of the current working directory? 3. What command, if typed at the prompt, would change the working directory to util, the child of the current working directory? Suppose that, after changing the working directory to util, we have the following terminal session univac:util graceh$ ls foo.c who.c bff.c byu.c univac:util graceh$ 4. What command, if typed at the prompt, would delete the file foo.c? 5. What command, if typed at the prompt, would create a copy of bff.c named bif.c in the chi directory which is a child of the parent of the working directory? 6. What command, if typed at the prompt, would print the contents of byu.c to the terminal