In awk, I'd like to check if a field is blank.
And by blank I mean, the field could be "" or " "
In other words, the field could either be empty, or be filled with spaces.
Would the regex look like this?
$5 ~ // { Action }?
What other ways are there?
Hmm.. in any case I think... (7 Replies)
Hello,
I have a record which split with "," I would like to check..if the field is empty and it will field "NIL" into the field.
input
45111,40404,peter,,0303403,0,030304,john,,9,0,
output
45111,40404,peter,NIL,0303403,0,030304,john,NIL,9,0, (8 Replies)
Hello,
I have a file with a lot of record like below:
00001,CUSTR,CUSTOMER ADDRESS,02310,N,0:00,0,0,0,0,0,0,0,0,0,0,0,0:00,0,0,0,0,0,CSH,ACC
Can I validate each record in the file and output the incorrect result?
field 1 - customer number, should be "5 digit.
field 2 - should be 5... (9 Replies)
Hi
I use the following code to read the file and to fix the length of the column of the record in the file 'Sample.txt'
ls Samp* | awk '
{ a=$1 }
END{
FS="n"
for(i=1;i<=NR;i++)
{
while( getline < a )
{
f1=$0;
print("Line::",f1);
f2=substr(f1,1,10)
print("Field1::",f2);... (10 Replies)
Hi all,
I have a huge file and I need to get ride of the fields 6-11 and replace the blanks in field 5 with a missing value(99999).
159,93848,5354,343,67898,45,677,5443,434,5545,45
677,45545,3522,244,
554,54344,3342,456,
344,43443,2344,444,23477... (12 Replies)
Hi everyone..
I'm trying to eliminate multiple whitespaces from a file..
I must make use of shell script to eliminate whitespaces..
Take a look at the sample file
1 int main()
2 {
3 int a,b;
4 printf("Enter the values of a and b");
5 scanf("%d%d",&a,&b);
6 if(a>b) ... (6 Replies)
I have this
text.filecharles darwin sam delight
george washington johnson culper
darwin sam delight
micheal jackson penny lite and would like to remove the row, if the first field is blank. so the result would be:
result.filecharles darwin sam ... (4 Replies)
Hi,
I have the following file, I'd like to add an additional blank field to this file
This is a tab delimited file, I have tried the same thing on excel, but looking for a unix solution.
Here is my input:
Country Postal Admin4 StreetBaseName StreetType
HUN 2243 Kóka Dózsa György ... (3 Replies)
Find a blank field
Hi
I have set of fields that have some blank values, how to find that and get its line noumbers in output file.
Ex:
Col1 col2 col3
11 ss 103
12 104
13 105
14 se 106 (2 Replies)
Hi All,
i have a file like
col1 col2 col3
13 24 NA
12 13 14
11 12 13
14 22 NA
18 26 NA
in this file if i found "NA" other values in the line are also replace by NA
Could you help me! (7 Replies)
Discussion started by: Shenbaga.d
7 Replies
LEARN ABOUT DEBIAN
class::field
Class::Field(3pm) User Contributed Perl Documentation Class::Field(3pm)NAME
Class::Field - Class Field Accessor Generator
SYNOPSIS
package Thing;
use Class::Field qw'field const';
field 'this';
field 'list' => [];
field 'map' => {};
field 'that', -init => '$self->setup_that';
field 'circular_ref' => -weaken;
const 'answer' => 42;
DESCRIPTION
Class::Field exports two subroutines, "field" and "const". These functions are used to declare fields and constants in your class.
Class::Field generates custom code for each accessor that is optimized for speed.
FUNCTIONS
o field
Defines accessor methods for a field of your class:
package Example;
use base 'Parent';
use Class::Field qw'field const';
field 'foo';
field bar => [];
sub lalala {
my $self = shift;
$self->foo(42);
push @{$self->{bar}}, $self->foo;
}
The first parameter passed to "field" is the name of the attribute being defined. Accessors can be given an optional default value.
This value will be returned if no value for the field has been set in the object.
o const
const bar => 42;
The "const" function is similar to <field> except that it is immutable. It also does not store data in the object. You probably always
want to give a "const" a default value, otherwise the generated method will be somewhat useless.
NOTE
This code was taken directly out the Spiffy module for those people who just want this functionality without using the rest of Spiffy.
AUTHOR
Ingy dA~Xt Net <ingy@cpan.org>
COPYRIGHT
Copyright (c) 2006, 2008, 2009. Ingy dA~Xt Net.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
See <http://www.perl.com/perl/misc/Artistic.html>
perl v5.10.1 2009-12-10 Class::Field(3pm)