Which one of the following statement is true about variables in shell?
A. variables do not require declaration before assigning value to them
B. variables are case sensitive
C. to extract the contents of a variable, we have to provide the variable a preceding $
D. all of the mentioned
Answer: Option D
Related Questions on Linux
What command is used to count the total number of lines, words, and characters contained in a file?
A. countw
B. wcount
C. wc
D. count p
E. None of the above
What command is used with vi editor to delete a single character?
A. x
B. y
C. a
D. z
E. None of the above
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