Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

awk empty fields

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting awk empty fields
# 1  
Old 05-07-2017
awk empty fields
Hello

I have a file like this

Code:
a,b,c,1,2,3,d,e,f,,,,g,h,i,,,,j,k,l

and
Code:
using awk 'FS="'"{print $9,$10,$11}'

does not work as I was hoping. I would like the empty fieds, i.e. between the two comma to be interpreted as a zero. is this possible?

I would like to get
Code:
f 0 0

out of the above ask command

Any ideas?
# 2  
Old 05-07-2017
+0 casts to an number.
Code:
awk -F, '{print $9+0,$10+0,$11+0}'

Just seeing it's a mixture of text and 0.
Then try a ternary (value if)
Code:
awk -F, '{print ($9!="" ? $9 : 0),($10!="" ? $10 : 0),($11!="" ? $11 : 0)}'

Last edited by MadeInGermany; 05-07-2017 at 05:27 PM..
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk to identify empty fields in line

I am trying to use awk to identify and print out records in fields that are empty along with which line they are in. I hope the awk below is close, it runs but nothing results. Thank you :). awk awk -F'\t' 'FNR==NR ~ /^*$/ { print "NR is empty" }' file file 123 GOOD ID 45... (3 Replies)
Discussion started by: cmccabe
3 Replies

2. Shell Programming and Scripting

awk sort based on difference of fields and print all fields

Hi I have a file as below <field1> <field2> <field3> ... <field_num1> <field_num2> Trying to sort based on difference of <field_num1> and <field_num2> in desceding order and print all fields. I tried this and it doesn't sort on the difference field .. Appreciate your help. cat... (9 Replies)
Discussion started by: newstart
9 Replies

3. Shell Programming and Scripting

How to print 1st field and last 2 fields together and the rest of the fields after it using awk?

Hi experts, I need to print the first field first then last two fields should come next and then i need to print rest of the fields. Input : a1,abc,jsd,fhf,fkk,b1,b2 a2,acb,dfg,ghj,b3,c4 a3,djf,wdjg,fkg,dff,ggk,d4,d5 Expected output: a1,b1,b2,abc,jsd,fhf,fkk... (6 Replies)
Discussion started by: 100bees
6 Replies

4. Shell Programming and Scripting

How to parse fixed-width columns which may include empty fields?

I am trying to selectively display several columns from a db2 query, which gives me a fixed-width output (partial output listed here): --------- -------------------------- ------------ ------ 000 0000000000198012 702 29 000 0000000000198013 ... (9 Replies)
Discussion started by: ahsh79
9 Replies

5. Shell Programming and Scripting

checking csv files with empty fields..!

Hi! I need to learn that how a shell script can transverse a csv file n check if any field is empty or not. means its contains two comma or space b/w commas i.e., "" or " ". can anyone help me out how I can do that.... (10 Replies)
Discussion started by: sukhdip
10 Replies

6. Shell Programming and Scripting

Trim empty fields in a given range

Is there some easy way to trim empty fields but only in a given range? for example say I have csv data that looks like this: apple,,,Granysmith,,2.50,,TimmysGrocers Pear,Bartlett,,,,,Park, peach,,,,Peento,3.00,Garden,TimmysGrocers is there a way of getting the single field with data... (4 Replies)
Discussion started by: cue
4 Replies

7. Shell Programming and Scripting

awk ignores fields with only spaces or empty

Hi, Does any one know how to avoid the scenario where awk ignores the fields having only spaces or empty fields? for instance, Data: "a","b","c","d",""," " code: awk -F, '{ print NF }' File the output I get is 4 instead of 6 do you know how to avoid this? (6 Replies)
Discussion started by: ahmedwaseem2000
6 Replies

8. Shell Programming and Scripting

Counting non empty fields and calculating with that number

Hello all, I have a problem with a skript of mine: My input has the following format 1,33296 transcript_id"ENSRNOT00000018629" 0 1,33296 0 0 transcript_id"ENSRNOT00000029014" 0 0,907392 transcript_id"ENSRNOT00000016905" 0,907392 0 transcript_id"ENSRNOT00000053370" 0 0... (0 Replies)
Discussion started by: DerSeb
0 Replies

9. Shell Programming and Scripting

use awk to replace empty fields with the latest nonempty field

Hi suppose I have a csv file like this count,1977,1978,1979 usa, , , blue japan, red, yellow,green india, , yellow,blue china, blue, yellow, green I want the output to be(replace everything, including empty data, with the most recent data): ... (1 Reply)
Discussion started by: grossgermany
1 Replies

10. Shell Programming and Scripting

awk sed cut? to rearrange random number of fields into 3 fields

I'm working on formatting some attendance data to meet a vendors requirements to upload to their system. With some help on the forums here, I have the data close. But they've since changed what they want. The vendor wants me to submit three fields to them. Field 1 is the studentid field,... (4 Replies)
Discussion started by: axo959
4 Replies
Login or Register to Ask a Question