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Which statement will output $x on the screen?echo “\$x”;echo “$$x”;echo “/$x”;

Question

Which statement will output x on the screen?echo “\x”;echo “x”;echo “/$x”;

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Solution

To output the value of $x on the screen, you can use the echo statement. Let's analyze each option:

  1. echo "$x"; This statement will output the literal string "x" on the screen. The backslash (\) is used to escape the dollar sign () so that it is treated as a regular character and not as a variable.

  2. echo "x"; This statement will output the value of the variable xprecededbyadollarsign.Thedoubledollarsign(x preceded by a dollar sign. The double dollar sign ()isaspecialsyntaxthatrepresentstheprocessIDofthecurrentscript.So,ifthevalueof) is a special syntax that represents the process ID of the current script. So, if the value of x is 10, this statement will output "$10".

  3. echo "/x";Thisstatementwilloutputthevalueofthevariablex"; This statement will output the value of the variable x preceded by a forward slash (/). For example, if the value of $x is "hello", this statement will output "/hello".

Therefore, the statement that will output the value of x on the screen is echo "\x";

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