When scripting in bash, it is recommended to always use which symbols around your variables to reference them?
Answer(s): E
Which of these shells are POSIX compliant?
Answer(s): B
https://en.wikibooks.org/wiki/Guide_to_Unix/Explanations/Choice_of_Shell
According to the UNIX design paradigm, what is a file?
Answer(s): D
https://en.wikipedia.org/wiki/Everything_is_a_file
If the system is swapping, what can be done to alleviate the problem?
Answer(s): C
Which if these is NOT true of symbolic, or soft, links?
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