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What output will be displayed when the user fred executes the following command?echo ‘fred $USER’
What output will be displayed when the user fred executes the following command?echo ‘fred $USER’
A . fred fred
B . fred /home/fred/
C . ‘fred $USER’
D . fred $USER
E . ‘fred fred’
Answer: D
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NO. Completely wrong answer.
In single quotes, $USER is not expanded, so it is intepreted AS IS: fred $USER.
While in double quotes, $USER is intepreted as (environment) variable and expanded: fred fred.
Please, correct.