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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_____________ describes a relationship between animals in which one benefits and the other is not harmed
a. Parasitism c. Mutualism b. Commensalism d. Saprophytism
Technician A says that the crankshaft determines the stroke of an engine. Technician B says that the length of the connecting rod determines the stroke of an engine. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
When brazing on refrigeration line with an attached service valve:
A) The line should be attached with quick setting cement instead of brazed. B) The joint should be heated slowly to prevent overheating the valve. C) The joint should be heated quickly to avoid overheating the valve. D) The valve should be cut out of the system prior to brazing to avoid overheating.
The EPA regulates eight principal pollutants.
Answer the following statement true (T) or false (F)