bits 11.
- awk is run using
awk 'awk_program' data-file - awk programs have the form
pattern { action }; pattern { action }; BEGINblocks are executed before reading data filesENDblocks are executed after reading data filesNRis a variable that tells us the number of rows read-F '<separator>'is how we can define a field separator for a file- Space is the default field separator
FPAT="..."is a way to use regex to define a pattern for each fieldFPATis only defined in gawk