What is expression in awk programming?

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Question:What is expression in awk programming?

1.expression evaluates a value to print, test or pass to a function

2.expression assigns a new value to a variable or field

3.expression evaluates a value to print, test or pass to a function & also assigns a new value to a variable or field

4.none of the mentioned

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  1. What is expression in awk programming?
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