nawk
[options
] ['
program
'
] [files
] [variable
=
value
]
New version of awk, with additional capabilities. Nawk is a pattern-matching language useful for manipulating data. See Section 11 for more information on nawk.
file
Read program instructions from file
instead of supplying program
instructions on command line.
regexp
Separate fields using regular expression regexp
.
variable
=value
Assign value
to variable
before executing 'program
'.
If specified at the end of the command line, assignment
occurs after opening files
.