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unix Which of these is true regarding the $0 built-in awk variable when processing an input file? It contains the name of the command used

unix

Which of these is true regarding the $0 built-in awk variable when processing an input file?

It contains the name of the command used to run the current script

FalseIt always contains the first record in the input file

You can use the shift command to swap in the value of $1

It contains the current record

It is empty; these variables start at $1

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