The clear command is a useful housekeeping utility for clearing the screen, but you can use a faster method. Describe this alternative method.

What will be an ideal response?


You can store the output of the clear command in a shell variable. The output of the clear command is a sequence of values that erases the contents of the screen. Storing these values in a variable and then echoing the contents of the variable on the screen accomplishes the same thing, but about 10 times faster.

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Discuss the efficiency of LEDs compared to CFL or incandescent lights.

What will be an ideal response?

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Chromium carbides form when the metal is between ____ Fahrenheit.

A. 200° and 500º B. 500° and 800º C. 800° and 1500° D. 1500° and 2000°

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¿Cuál de los siguientes tipos de conducto es demasiado delgado para roscarlo?

a. IMC b. EMT c. RMC d. Tubería de hierro negro

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