Possibly wrong solution | Chapter 5 Exercise 6

[Hadrien-lcrx]

In How can I process a single argument, student sends this feedback:
"""
Instructions asks to select lines 5-8 from a file. The correct answer shown is: head -n $3 $1 | tail -n $2. However this will show lines 4-8 as the tail comment will pull that last 5 lines of the 8 from head, but what you want in this case is the inclusive difference which is 4 (8-5+1). sed -n 5,8p filename would work though ;) although I'm not sure if the course gets to using sed.
"""

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Cf d3dclark@gmail.com #64974
Cc @bakera81

[gvwilson]

Should be closed by 97a7f4b.