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 UWA week 15 (1st semester, week 6) ↓
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12:29am Thu 11th Apr, Runzhi Z.

Hi Professor:

I noticed that in the requirements of assignment 1, there is "Your script should only use Bash structures and the Linux commands that we have covered thus far in the unit. use any advanced Linux commands, such as sed or awk". But we have already learned commands such as "sort" and "grep" (in Lecture 04 and 06, respectively), and I would like to know if these are considered advanced Linux commands? Can we use them?

Another question is, since we're dealing with user input errors, I'm wondering, if a user passes in a file that doesn't match the required format, but is also not zero in length, should I throw a "file not in format" error or should I let the program continue to run, even if it gives a completely unpredictable result?

The final question is, do we need to output the error output to stderr?

Thank you for your attention to this request!

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