Visit Our UNIX and Linux User Community


Split column into rows

 
Thread Tools Search this Thread
Top Forums UNIX for Beginners Questions & Answers Split column into rows
# 1  
Old 02-15-2017
Split column into rows

Hi,

I have input dataset as below:

Code:
Cl.jenn,1051,ABCD
JEN.HEA,9740|1517|8119|2145,ZZZZ,REPEAT
Rich.Sm,
Ann.Car,3972|4051|1064|4323|4122|2394|2574|4507
Sta.for,7777,ABCD,UUUU
Sm.Ric,
Ch.LRD, 
Eh.ab,
Gr.sh,

Expected output:
-------------------
Code:
Cl.jenn,1051,ABCD
JEN.HEA,9740,ZZZZ,REPEAT
JEN.HEA,1517,ZZZZ,REPEAT
JEN.HEA,8119,ZZZZ,REPEAT
JEN.HEA,2145,ZZZZ,REPEAT
Rich.Sm,
Ann.Car,3972
Ann.Car,4051
Ann.Car,1064
Ann.Car,4323
Ann.Car,4122
Ann.Car,2394
Ann.Car,2574
Ann.Car,4507
Sta.for,7777,ABCD,UUUU
Sm.Ric,
Ch.LRD,
Eh.ab,
Gr.sh,

I am using below command to achieve this:
--------------------------------------------------
Code:
awk -F',' -v OFS=',' '{n=split($2,s,"|"); for(i=1;i<=n;i++) {$2=s[i];print}}' test.txt

Actual output is :
-------------------
Code:
Cl.jenn,1051,ABCD
JEN.HEA,9740,ZZZZ,REPEAT
JEN.HEA,1517,ZZZZ,REPEAT
JEN.HEA,8119,ZZZZ,REPEAT
JEN.HEA,2145,ZZZZ,REPEAT
Ann.Car,3972
Ann.Car,4051
Ann.Car,1064
Ann.Car,4323
Ann.Car,4122
Ann.Car,2394
Ann.Car,2574
Ann.Car,4507
Sta.for,7777,ABCD,UUUU
Ch.LRD,

Some records are filtered to display. Any suggestions pls???

Last edited by Don Cragun; 02-16-2017 at 12:01 AM.. Reason: Add CODE tags.
# 2  
Old 02-16-2017
Splitting a zero length field produces an array with no elements. I would guess that the lines that are printing data in what look like empty field 2 values actually contain one or more <space>s or <tab>s while the lines that have been "filtered" actually have no characters in the 2nd field. Try:
Code:
awk -F',' -v OFS=',' '{n=split($2,s,"|"); if(n)for(i=1;i<=n;i++) {$2=s[i];print} else print}' test.txt

or, preferably (and more readable):
Code:
awk -F',' -v OFS=',' '
{	n = split($2, s, "|")
	if(n)	for(i = 1; i <= n; i++) {
			$2 = s[i]
			print
		}
	else	print
}' test.txt

This User Gave Thanks to Don Cragun For This Post:
# 3  
Old 02-16-2017
Awesomely working...Great Sir!!!Thank you...
By the way, do you have any reference on how to read double-quoted data in AWK??
Like for example, above scenario
Code:
"Ric.Sm","1234|1234|1234","UUUU"
"Sm.Ric","4564","UUUU"

# 4  
Old 02-16-2017
What do you want for output? With quotes or without quotes?
This User Gave Thanks to Don Cragun For This Post:
# 5  
Old 02-16-2017
Would like the Output with double quotes...
# 6  
Old 02-16-2017
Maybe something like:
Code:
awk -F',' -v dq='"' -v OFS=',' '
{	f2 = $2
	gsub(/"/, "", f2)
	n = split(f2, s, "|")
	if(n)	for(i = 1; i <= n; i++) {
			$2 = dq s[i] dq
			print
		}
	else	print
}' test.txt

This User Gave Thanks to Don Cragun For This Post:
# 7  
Old 02-22-2017
Thank you Don...Smilie

Previous Thread | Next Thread
Test Your Knowledge in Computers #1010
Difficulty: Easy
The number 200 in base 8 equals 128 in base 10.
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

How to split one long column into multiple rows with 3 each ?

I have a large csv dataset like this : A value1 A value2 A value3 B value1 B value2 B value3 C value1 C value2 C value3 what I expected output is :A value1 value2 value3 B value1 value2 value3 C value1 value2 value3 I'm thinking of use like awk, columns , but haven't find a proper... (4 Replies)
Discussion started by: nengcheng
4 Replies

2. Shell Programming and Scripting

Split column data if the table has n number of column's with some record

Split column data if the table has n number of column's with some record then how to split n number of colmn's line by line with records Table --------- Col1 col2 col3 col4 ....................col20 1 2 3 4 .................... 20 a b c d .................... v ... (11 Replies)
Discussion started by: Priti2277
11 Replies

3. Shell Programming and Scripting

awk split columns after matching on rows and summing the last column

input: chr1 1 2 3 chr1 1 2 4 chr1 2 4 5 chr2 3 6 9 chr2 3 6 10 Code: awk '{a+=$4}END{for (i in a) print i,a}' input Output: chr112 7 chr236 19 chr124 5 Desired output: chr1 1 2 7 chr2 3 6 19 chr1 2 4 5 (1 Reply)
Discussion started by: jacobs.smith
1 Replies

4. Shell Programming and Scripting

awk to sum a column based on duplicate strings in another column and show split totals

Hi, I have a similar input format- A_1 2 B_0 4 A_1 1 B_2 5 A_4 1 and looking to print in this output format with headers. can you suggest in awk?awk because i am doing some pattern matching from parent file to print column 1 of my input using awk already.Thanks! letter number_of_letters... (5 Replies)
Discussion started by: prashob123
5 Replies

5. Shell Programming and Scripting

Converting Single Column into Multiple rows, but with strings to specific tab column

Dear fellows, I need your help. I'm trying to write a script to convert a single column into multiple rows. But it need to recognize the beginning of the string and set it to its specific Column number. Each Line (loop) begins with digit (RANGE). At this moment it's kind of working, but it... (6 Replies)
Discussion started by: AK47
6 Replies

6. UNIX for Dummies Questions & Answers

merging rows into new file based on rows and first column

I have 2 files, file01= 7 columns, row unknown (but few) file02= 7 columns, row unknown (but many) now I want to create an output with the first field that is shared in both of them and then subtract the results from the rest of the fields and print there e.g. file 01 James|0|50|25|10|50|30... (1 Reply)
Discussion started by: A-V
1 Replies

7. Shell Programming and Scripting

awk command to print only selected rows in a particular column specified by column name

Dear All, I have a data file input.csv like below. (Only five column shown here for example.) Data1,StepNo,Data2,Data3,Data4 2,1,3,4,5 3,1,5,6,7 3,2,4,5,6 5,3,5,5,6 From this I want the below output Data1,StepNo,Data2,Data3,Data4 2,1,3,4,5 3,1,5,6,7 where the second column... (4 Replies)
Discussion started by: ks_reddy
4 Replies

8. Shell Programming and Scripting

Split single rows to multiple rows ..

Hi pls help me out to short out this problem rm PAB113_011.out rm: PAB113_011.out: override protection 644 (yes/no)? n If i give y it remove the file. But i added the rm command as a part of ksh file and i tried to remove the file. Its not removing and the the file prompting as... (7 Replies)
Discussion started by: sri_aue
7 Replies

9. Shell Programming and Scripting

Split rows

Hi all, I need a simple bin/sh script FILE1: ab1 gegege swgdeyedg ac2 jxjjxjxjxxjxjx ad3 ae4 xjxjxj zhzhzh ahahs af5 sjsjsjs ssjsjsjsj sjsjsj ag6 shshshshs sjjssj shhshshs myScript.sh has to return: ROW ab1 ROW ac2 ROW ad3 ROW ae4 In other words: "ROW " + the first world... (3 Replies)
Discussion started by: ric79
3 Replies

10. Shell Programming and Scripting

split rows

Hi I wanted to split rows based on the number of 1's present in 21st field(21st field is 40 length field) so I wrote the below awk code. However, the tool that I am using to invoke the command is not recognising the command. So, could you please help me to translate this command to sed? awk... (5 Replies)
Discussion started by: ahmedwaseem2000
5 Replies

Featured Tech Videos