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public/subjects/teacher/README.md

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teacher

Instructions

"let's play!"

"A true teacher does not jealously guard his mastery."

The commissioner was most impressed by the result of your answers. He has now asked your help to create a training program for the future police inspectors. You gladly accept as you think that this will help lessen your burden of fighting crime in the future.

In a training folder, various folders mystery were prepared with some key differences in the data for each group of trainees. (those folders will not be called mystery, they will have different names but they will all be at the same level)

To simplify your life as a teacher and as the answers will not be exactly the same in each mystery folder, you need to write a teacher.sh file that does the following:

  • step 1, it enters the mystery folder.(again, the names will vary)

  • step 2, it isolates, thru a similar command that you used to find it, and into an environment variable, the number (and only the number) of the key interview that helped solved the mystery (Unlike the interview number, the adress will not change across the mystery folders that will be tested, hence the command to find the interview is the same across all the mystery folders that will be tested).

  • step 3, it prints the newly created environment variable.

  • step 4, it prints what the interview contains.

  • step 5, it executes the command that should have printed the shorted list of 4 suspects. (it shows only the license Plate, the Make, the Color, the Owner, and the Height)

  • step 6, it executes the command that should have gotten your main suspect convicted (as a reminder the result of that command should be the printing of a number) except that now you replace your suspect name with the environment variable MAIN_SUSPECT.

  • step 7, step 1 to 6 are repeated for each mystery folder of the training folder that the program works in.

Note that for step 2 to 6, all the commands have to be executed with keeping in mind that the mystery folder is the current directory but that its name will vary.

Now show them who is the boss...

Hint

Search how to do a loop with a .sh file now.