awk divides the input for your program into records and fields.
It keeps track of the number of records that have been read so far from
the current input file. This value is stored in a predefined variable
FNR, which is reset to zero every time a new file is started.
Another predefined variable,
NR, records the total number of input
records read so far from all data files. It starts at zero, but is
never automatically reset to zero.
Normally, records are separated by newline characters. You can control how
records are separated by assigning values to the built-in variable
RS is any single character, that character separates records.
RS is treated as a regular expression.
This mechanism is explained in greater detail shortly.
|• awk split records||How standard |
|• gawk split records||How |