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Full Discussion: awk to search for specific line and replace nth column
Top Forums Shell Programming and Scripting awk to search for specific line and replace nth column Post 302878890 by Akshay Hegde on Monday 9th of December 2013 11:53:28 AM
Old 12-09-2013
combine like this

Code:
$ awk 'substr($1,length($1)-3) == 2013{$13 = -9.99; for (i=2; i<=NF; i++) $i=sprintf("%6.2f", $i)}1'  file
AW12000012012   2.38   1.51   3.01   1.66   0.90   0.91   1.22   0.82   0.57   1.67   2.31   3.63   0.00
AW12000012013   1.52   0.90   1.20   1.34   1.21   0.67   1.18   1.22   2.75   0.84   1.52  -9.99  -9.99
Q120100010001   6.35   1.70   2.59   1.88   3.08   0.70   0.71   0.31   2.27   0.19   2.42   6.05   0.00

if you don't care about spacing then this also will work
Code:
$ awk 'substr($1,length($1)-3) == 2013{$13 = -9.99}{$1=$1}1'  file
AW12000012012 2.38 1.51 3.01 1.66 0.90 0.91 1.22 0.82 0.57 1.67 2.31 3.63 0.00
AW12000012013 1.52 0.90 1.20 1.34 1.21 0.67 1.18 1.22 2.75 0.84 1.52 -9.99 -9.99
Q120100010001 6.35 1.70 2.59 1.88 3.08 0.70 0.71 0.31 2.27 0.19 2.42 6.05 0.00

 

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LEARN ABOUT PHP

db2_field_name

DB2_FIELD_NAME(3)							 1							 DB2_FIELD_NAME(3)

db2_field_name - Returns the name of the column in the result set

SYNOPSIS

       string db2_field_name (resource	$stmt, mixed  $column)

DESCRIPTION

	Returns the name of the specified column in the result set.

PARAMETERS

	      o $stmt
		- Specifies a statement resource containing a result set.

	      o $column
		-  Specifies  the  column in the result set. This can either be an integer representing the 0-indexed position of the column, or a
		string containing the name of the column.

RETURN VALUES

	Returns a string containing the name of the specified column. If the specified column does not exist in the result set,  db2_field_name(3)
       returns FALSE.

SEE ALSO

       db2_field_display_size(3), db2_field_num(3), db2_field_precision(3), db2_field_scale(3), db2_field_type(3), db2_field_width(3).

PHP Documentation Group 													 DB2_FIELD_NAME(3)
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