The code bartus11 suggested may be what you want; but you need to be careful with your terminology. By definition a null value does not contain any characters. Assuming that comma is your field separator, this file does not contain any null values. The 2nd field in the 1st and 3rd lines appears to contain a space character. If your file had been:
then you could use the awk script:
to print the lines where the 2nd field is an empty string (null value). Of course there are lots of other ways to do this too.
Thanks for you explanation. actually, in my file, it has some space.
Hi All,
I have a table with 10 columns. Some columns(2nd,4th,5th,7th,8th and 10th) are Not Null columns. I'll get a tab-delimited file and want to check col by col and generate seperate error code for each col eg:102 if 2nd col value is NULL and 104 if 4th col value is NULL so on... I am a... (7 Replies)
Hi All,
I have a file with 10 columns and get the required data for nine columns properly except 8th. In 8th column i have both NULL and NON NULL values...i.e
certain records have values for all the columns including 8th column and certain records have 8th column as NULL.My requisite is,without... (20 Replies)
Hi this is my first time posting ever. I'm relatively new in using AWK/SED, I've been trying many a solution. I'm trying to replace the 59th column in a file where if I encounter '' then I would like to replace it with the word NULL.
example
0 , '' , '' , 0 , 195.538462
change it to
0... (5 Replies)
Hi, everyone
I have a requirement as following:
source file
1, abc, def, caaa
2, , cde, aaa
3, bcd, , adefefg
I need find columns which contains null value, in above example,
I need get two rows
2, , cde, aaa
3, bcd, , adefefg
anybody has idea how to achive this
... (5 Replies)
Hi, gurus,
I need remove lines in a file which contains null value in certain column
eg.
123, ,abc,def,cde
234,abc,cde,def
456,cde, ,bcd
in this file I need remove lines which second column contains null.
expected result:
234,abc,cde,def
456,cde, ,bcd
:wall:
Thanks in advance (2 Replies)
hi,
I had a small question.I had a file from which i need to extract data.
I have written the below script to check if the file exists and if it exists extract requierd columns from the file.
IFILE=/home/home01/Report_1.csv
OFILE=/home/home01/name.csv.out1
if #Checks if file exists... (1 Reply)
Hi Forum.
I tried to search for the solution online but I couldn't find specifically what I'm trying to achieve.
I want to replace Null with 0 in column position#6; Any other values would be retained.
Before:
52653363|3407732947|28-MAR-2014... (3 Replies)
hi,
Am trying to find a solution for finding a null column value inside a loop using array.
for eg:
two
three
five
From the above array myarray,myarray and myarray having null values. But when am trying to check that space using some condition its not working.
for (( i=0;... (4 Replies)
Hi,
I have a huge list of archives (.gz). Each archive is about 40MB. A file is generated every minute so if I want to analyze the data for 1 hour I get already 60 files for example.
These are text files, ';' separated, each line having about 300 fields (columns).
What I need to do is to... (11 Replies)