Linux Bash Arithmetic Expressions Question: Download Linux Bash Arithmetic Expressions PDF

Which one of the following is bit-wise 'exclusive or' operator?
a) ^=
b) |=
c) !=
d) none of the mentioned

a) ^=

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If a and b are 2 variables then the meaning of a<<=b is: a) b = a << b b) a = a << b c) b = b << a d) a = a << b	Which one of the following is not a valid operator in bash shell? a) \|\| b) ~ c) =<< d) -=