Write a script that stores the time it takes a command

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Scripting the GNU/Linux Shell

1. Write a script that stores the time it takes a command (your choice of command) to run in three variables, real, user, and system, corresponding to the three default times that time prints.

Ex 2.What is wrong with if [ $var=x ]? What should it be? Why does it give the result it does?

Ex 3. Write a function, valid_square(), that returns successfully if its sole argument is a valid SAN chessboard square or fails if it is not. Write a function to test that it works.

Reference no: EM131320579

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