Find a blank field


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Find a blank field
# 1  
Old 06-14-2013
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:
Code:
Col1 col2 col3
11 ss 103
12   104
13   105  
14 se 106

# 2  
Old 06-14-2013
Code:
awk '{if(NF==2)print $1}'


Last edited by Franklin52; 06-14-2013 at 08:09 AM.. Reason: Please use code tags
# 3  
Old 06-14-2013
Code:
$ cat inputfile
Col1 col2 col3
11 ss 103
12   104
13   105  
14 se 106
$ awk 'NF!=3 {print NR}' inputfile
3
4

Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. 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! (7 Replies)
Discussion started by: Shenbaga.d
7 Replies

2. 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 Kóka Dózsa György ... (3 Replies)
Discussion started by: ramky79
3 Replies

3. 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) ... (6 Replies)
Discussion started by: abk07
6 Replies

4. 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... (12 Replies)
Discussion started by: GoldenFire
12 Replies

5. Shell Programming and Scripting

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

Hi, I tried the below piece of code for my script to check whether it has a blank space for a particular field. if(f10==/]/){ print "Field 10 is Correct";} else{ print "Field 10 is Wrong"; } Please help me to know whether the "if" condition applied here is correct or do i... (14 Replies)
Discussion started by: meva
14 Replies

6. Shell Programming and Scripting

finding field count escaping the blank values

Hi All I have a file.Below are few records of the file. sample.txt CPS,ES,843232910001,ESF81462,W N LINDSAY LTD,01674840629,09-FEB-2009,23-FEB-2009,CDR735,ALL CALLS,01674840629 CPS,ES,843232670001,ESF81462,W N LINDSAY LTD,01674840629,09-FEB-2009,23-FEB-2009,CDR734,ALL... (2 Replies)
Discussion started by: king007
2 Replies

7. 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, (8 Replies)
Discussion started by: happyv
8 Replies

8. Shell Programming and Scripting

how to include field separator if there are blank fields?

Hi, I have the following data in the format as shown (note: there are more than 1 blank spaces between each field and the spaces are not uniform, meaning there can be one blank space between field1 and field2 and 3 spaces between field3 and field4, in this example, # are the spaces in between... (19 Replies)
Discussion started by: ReV
19 Replies

9. 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... (7 Replies)
Discussion started by: yongho
7 Replies
Login or Register to Ask a Question

Featured Tech Videos