In unix, what is echo used for?
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Why is it that it is not advisable to use root as the default login?
What are the various ids in unix processes?
Describe file systems in unix?
What are system variables in unix?
Does apple run unix?
What are states that the page can be in, after causing a page fault?
What is a directory?
What is the difference between a shell variable that is exported and the one that is not exported?
List a few significant features of unix?
Is unix written in c?
Is unix only for supercomputers?
Is unix still relevant?