$n
|
nth field in current record; fields are
separated by FS
|
$0
|
Entire input record
|
ARGC
|
Number of arguments on command line
|
ARGIND
|
Current file's place in command line (starting with
0)
|
ARGV
|
An array containing the command-line arguments
|
CONVFMT
|
Conversion format for numbers (default is %.6g)
|
ENVIRON
|
An associative array of environment variables
|
ERRNO
|
Description of last system error
|
FIELDWIDTHS
|
List of field widths (whitespace-separated)
|
FILENAME
|
Current filename
|
FNR
|
Like NR, but relative to the current
file
|
FS
|
Field separator (default is any whitespace; null string separates
into individual characters)
|
IGNORECASE
|
If true, make case-insensitive matches
|
LINT
|
If true, run as if -W lint had been
specified on the command line; if value is FATAL, generate fatal errors
|
NF
|
Number of fields in current record
|
NR
|
Number of the current record
|
OFMT
|
Output format for numbers (default is %.6g)
|
OFS
|
Output field separator (default is a blank)
|
ORS
|
Output record separator (default is a newline)
|
RLENGTH
|
Length of the string matched by match function
|
RS
|
Record separator (default is a newline)
|
RT
|
The input text matching the record separator (RS) for the current
record
|
RSTART
|
First position in the string matched by match function
|
SUBSEP
|
Separator character for array subscripts (default is \034)
|