[Solved] Help correcting file with differing number of fields


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers [Solved] Help correcting file with differing number of fields
# 1  
Old 11-16-2012
[Solved] Help correcting file with differing number of fields

Hi all, I have a tab separated file, and one of the fields is sub-delimited by colon. The problem is there can be zero to 4 colons within this field. When I try to change colons to tabs the result is a file with a differing number of fields.

I want to go from:
Code:
a:b:c:d:e
a:b:c
a:b:c:d:e
a
a:b:c:d:e

To:
Code:
a    b     c     d     e
a    b     c     .     .
a    b     c     d     e
a    .     .     .     .
a    b     c     d     e

Any help is appreciated!
Thanks
# 2  
Old 11-16-2012
Code:
awk -F ":" 'NF<5{for(i=(NF+1);i<=5;i++){$i="."}}{$1=$1}1' OFS="\t" file

This User Gave Thanks to pamu For This Post:
# 3  
Old 11-16-2012
That seems to work perfectly!! Thanks so much.
# 4  
Old 11-17-2012
this works for n number of columns

Code:
$ n=$(awk -F: 'NF>a{a=NF}END{print a}' input.txt);
$ awk -F: -v n="$n" '{for(i=1i<=n;i++)if($i=="")$i="."}NF==n{gsub(":"," ")}1' input.txt
a b c d e f g h i . .
a b c . . . . . . . .
a b c d e . . . . . .
a . . . . . . . . . .
a b c d e . . . . . .
a b c d e f g h i j k

$ cat a.txt
a:b:c:d:e:f:g:h:i
a:b:c
a:b:c:d:e
a
a:b:c:d:e
a:b:c:d:e:f:g:h:i:j:k

This User Gave Thanks to itkamaraj For This Post:
# 5  
Old 11-19-2012
works great, thanks so much.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

How to add number of fields throughout file together?

So, I have three problems that cover this subject. First one asks me to find the number of fields in the file that contain the substring "he". I found the number of fields, but the problem I have is that they are displaying by each record. I want to add all of the records' fields together. With... (2 Replies)
Discussion started by: mc10
2 Replies

2. UNIX for Beginners Questions & Answers

Is there a UNIX command that can compare fields of files with differing number of fields?

Hi, Below are the sample files. x.txt is from an Excel file that is a list of users from Windows and y.txt is a list of database account. $ head -500 x.txt y.txt ==> x.txt <== TEST01 APP_USER_PROFILE USER03 APP_USER_PROFILE TEST02 APP_USER_EXP_PROFILE TEST04 APP_USER_PROFILE USER01 ... (3 Replies)
Discussion started by: newbie_01
3 Replies

3. Shell Programming and Scripting

awk processing of variable number of fields data file

Hy! I need to post-process some data files which have variable (and periodic) number of fields. For example, I need to square (data -> data*data) the folowing data file: -5.34281E-28 -3.69822E-29 8.19128E-29 9.55444E-29 8.16494E-29 6.23125E-29 4.42106E-29 2.94592E-29 1.84841E-29 ... (5 Replies)
Discussion started by: radudownload
5 Replies

4. Shell Programming and Scripting

Printing Number of Fields with the line number

Hi, How to print the number of fields in each record with the line number? Lets saw I have 3212|shipped|received| 3213|shipped|undelivered| 3214|shipped|received|delivered I tried the code awk -F '|' '{print NF}' This gives me ouput as 3 3 4 (5 Replies)
Discussion started by: machomaddy
5 Replies

5. Shell Programming and Scripting

Print records which do not have expected number of fields in a comma delimited file

Hi, I have a comma (,) delimited file, in which few fields are enclosed with in double quotes " ". I have to print the records in the file which donot have expected number of field with the line number. File1 ==== name,desgnation,doj,project #header#... (7 Replies)
Discussion started by: machomaddy
7 Replies

6. Shell Programming and Scripting

separate the file according to the number of fields

I have a file which is delimetered by ',' i need to filter out a file with respect to the number of fileds in each line. a,s,d,f,g,h,j,k,l 1,2,3,3,4,5,6,7,6 a,2,3 4,5,6,7 in this i neeed to filter out the lines with 8 column to another file and rest to another file. so ... (3 Replies)
Discussion started by: ratheeshjulk
3 Replies

7. UNIX for Advanced & Expert Users

Problem while counting number of fields in TAB delimited file

I'm facing a strange problem, please help me out. Here we go. I want to count number of fields in particular file. filename and delimiter character will be passed through parameter. On command prompt if i type following i get 27 as output (which is correct) cat customer.dat | head -1 | awk... (12 Replies)
Discussion started by: vikanna
12 Replies

8. Shell Programming and Scripting

number of fields in a text file as a variable - perl

I am looking for perl code to get following o/p. If a line has more than 7 fields then value in field 7 onwards is BHA_GRP1, BHA_GRP2, BHA_GRP3, BHA_GRP4 etc. Here is example of what I am trying to achieve. INPUT File: VAH NIC_TYPE CONFIG SIZE_GB PILO KOM BHA_GRP1 BHA_GRP2 BHA_GRP3...... 2... (1 Reply)
Discussion started by: dynamax
1 Replies

9. Shell Programming and Scripting

[Solved] Sorting by several fields

Hello, I have a file with information separated by ";" like this: ABC;20110126000008;00-10-95-29-17-C6;2;37190292 ABC;20110126000008;00-10-95-29-17-C6;1;53140866 ABC;20110126000008;00-10-05-01-11-38;2;11182251 ABC;20110126000008;00-10-05-01-11-38;1;25952816... (3 Replies)
Discussion started by: rubber08
3 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

Featured Tech Videos