how to validate a field when it is blank using awk prog Post: 302357309

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk: How to check if field is blank?

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...

2. Shell Programming and Scripting

fill a NIL into the blank field

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,

3. Shell Programming and Scripting

validate each field in txt

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...

4. Shell Programming and Scripting

how to fix the column length in a file using Awk Prog

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);...

5. Shell Programming and Scripting

Find and replace blank in the last field

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...

6. Shell Programming and Scripting

Help with removal of blank spaces from the second field!

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) ...

7. Shell Programming and Scripting

awk - remove row if specific field is empty/blank

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 ...

8. Shell Programming and Scripting

Adding an additional blank field to a file

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 K�ka D�zsa Gy�rgy ...

9. Shell Programming and Scripting

Find a blank field

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

10. Shell Programming and Scripting

Find a blank field and replace values to NA

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!

LEARN ABOUT SUSE

igawk

IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME

       igawk - gawk with include files

SYNOPSIS

       igawk [ all gawk options ] -f program-file [ -- ] file ...
       igawk [ all gawk options ] [ -- ] program-text file ...

DESCRIPTION

       Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).

       AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like

	      @include getopt.awk

       in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.

OPTIONS

       See gawk(1) for a full description of the AWK language and the options that gawk supports.

EXAMPLES

       cat << EOF > test.awk
       @include getopt.awk

       BEGIN {
	    while (getopt(ARGC, ARGV, "am:q") != -1)
		 ...
       }
       EOF

       igawk -f test.awk

SEE ALSO

       gawk(1)

       Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.

AUTHOR

       Arnold Robbins (arnold@skeeve.com).

Free Software Foundation					    Nov 3 1999								  IGAWK(1)