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Full Discussion: Replace 1st column entires
Top Forums UNIX for Dummies Questions & Answers Replace 1st column entires Post 302936031 by MadeInGermany on Sunday 22nd of February 2015 04:52:03 AM
Old 02-22-2015
Not having the g option means only one substitution (the first match) per line. This works if the first match is in the first column.
The ^ anchor does the match at the beginning of the line - perfect here.
More general is something that is column-aware
Code:
awk '{sub("C","string",$1)}1'

where the scope is $1. You can further use an anchor "^C" to have the match only at the beginning of column 1. And you could do the same for $2 or any other column!
 

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LEARN ABOUT PHP

db2_field_precision

DB2_FIELD_PRECISION(3)							 1						    DB2_FIELD_PRECISION(3)

db2_field_precision - Returns the precision of the indicated column in a result set

SYNOPSIS

       int db2_field_precision (resource  $stmt, mixed	$column)

DESCRIPTION

	Returns the precision of the indicated column in a 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 an integer containing the precision of the specified  column.  If  the	specified  column  does  not  exist  in  the  result  set,
       db2_field_precision(3) returns FALSE.

SEE ALSO

       db2_field_display_size(3), db2_field_name(3), db2_field_num(3), db2_field_scale(3), db2_field_type(3), db2_field_width(3).

PHP Documentation Group 												    DB2_FIELD_PRECISION(3)
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