Hi this is for linux/unix bash script. (Terminal) The following question refers

Question

Hi this is for linux/unix bash script. (Terminal)

The following question refers to a file named "cars"

This "cars" file can be created by inputting "vi cars" into the linux terminal and copying/pasting the following contents..

--------------------------------------------

plym fury     77 73 2500
chevy nova 79 60 3000
ford mustang 65 45 17000
volvo gl    78 102 9850
ford ltd    83 15 10500
Chevy nova    80 50 3500
fiat 600    65 115 450
honda accord   81 30 6000
ford thundbd    84 10 17000
toyota tercel    82 180 750
chevy impala    65 85 1550
ford bronco    83 25 9525

--------------------------------------------

Question :

1.

a) Sort the cars by price. Pipe the output of the sed in the previous question into a sort to do this, and do not forget to sort numerically on the fifth field.

b) Finally, display the output of question 2 in uppercase. Pipe the output of the sort into a tr command.

Explanation / Answer

1 a)

Though I don't know previous part but you can just put part in bold after your sed command

sed -n '/[0-9]{5}$/!p' cars | sort -n -k 5

This will sort numerically (-n) on 5 th field (-k 5)

b) sed -n '/[0-9]{5}$/!p' cars | sort -n -k 5 | tr "[a-z]" "[A-Z]"

This last part is converting any char from a to z to upper case.

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