"As we said earlier, this is a long chapter, packed with details, and you are dedicated indeed if you have read every word to get here. You will find that it pays to go back and re-read sections from time to time, either to see precisely how something works, or because one of the examples in later ch"
"FNR, NF and NR are set each time a new record is read"
"FNR: The ordinal number of the current record in the current file. NR: The ordinal number of the current record from the the start of input."