1- Explain how writing UNIX in C made it easier to port it to new machines.
2- A directory contains the following files:
aardvark bonefish capybara dingo emu
ferret koala grunion llama hyena marmot ibex nuthatch jellyfish ostrich
porpoise quacker rabbit seahorse tuna
unicorn vicuna weasel yak zebu
Which files will be listed by the command ls [abc]e?
3- What does the following Linux shell pipeline do? grep nd xyz | wc â€“l
4- In general, do you think daemons have higher or lower priority than interactive proc- esses? Why? 5- In every processâ€ entry in the task structure, the PID of the parent is stored. Why?
6-Give two examples of the advantages of relative path names over absolute ones.
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