December 2024
M T W T F S S
 1
2345678
9101112131415
16171819202122
23242526272829
3031  

Categories

December 2024
M T W T F S S
 1
2345678
9101112131415
16171819202122
23242526272829
3031  

awk built-in variables

Properties Description
$0 The current record (as a single variable)
$1~$n N-th field of the current record, separated by FS between fields
FS Enter the default field separator is a space
NF The number of fields in the current record is the number of columns
NO The number of records have been read out, is the line number, starting at 1
RS He recorded input delimiter defaults to a newline
OFS The default output field separator is a space
ORS Output record separator, by default a newline
ARGC The number of command line arguments
ARGV Command line parameter array
FILENAME Enter the file name of the current
IGNORECASE If true, the case-insensitive match
ARGIND ARGV identifier is currently processing files
CONVFMT Digital conversion formats% .6g
ENVIRON UNIX Environment Variables
Errno UNIX system error message
FIELDWIDTHS Enter keywords separated by the width of the string field
FNR The current number of records
OFMT Digital output format% .6g
RSTART Was first matched string matching function
RLENGTH Is the length of the matched string matching function
SUBSEP \034

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