Question: operating system questions 1. Define the UNIX shell. 2. When you enter your login id and password, what determines what program starts up? Is it

operating system questions operating system questions 1. Define the UNIX shell. 2. When you enter

1. Define the UNIX shell. 2. When you enter your login id and password, what determines what program starts up? Is it always a UNIX shell? 3. What is the difference between a program and a process? I 4. When a program is executed, it normally executes as a process. 5. What is the generic format for a UNIX command? 6. Explain what occurs when a user enters a (any) command at the shell prompt. e.g. $ ls

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