Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Program to combine two lines in a file on checking the first character of each line

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Program to combine two lines in a file on checking the first character of each line
# 1  
Old 02-25-2016
Question Program to combine two lines in a file on checking the first character of each line
Hi,

I have a requirement where I need to combine two lines in a file based on first character of each line in a file.

Please find the sample content of the file below:
Code:
_______________________
5, jaya, male, 4-5-90, single
smart
6, prakash, male, 5-4-84, married
fair
7, raghavi, female, 12-10-85, married
calm
talented
9, bhaskar, male, 29-12-92, single
studios
________________________

I want the output for this file as
_______________________
Code:
5, jaya, male, 4-5-90, single-smart
6, prakash, male, 5-4-84, married-fair
7, raghavi, female, 12-10-85, married-calm-talented
9, bhaskar, male, 29-12-92, single-studios

________________________

can you please help me with the shell program that achieve my requirement?
Last edited by jim mcnamara; 02-25-2016 at 05:16 PM..
# 2  
Old 02-25-2016
What have you tried so far? If you have some code we can help you get it working.
This User Gave Thanks to jim mcnamara For This Post:
jayaP
# 3  
Old 02-25-2016
Hi Jim,

I'm new to the Shell scripting. Not sure on how to start. But I tried a piece of code and I'm sure that its completely wrong Smilie
_______________
#!/bin/ksh

for i in '/data/informatica/HQ/APSSR01/SrcFiles/tgt_detail_import.dat| grep -o ^.'
do

case $i in
[0-9]*) var= 1;;
if [$var= 1] then 'sed 'N;s/\n//''
fi
esac
done
________________
Please help me by creating a new program.

Regards,
Jaya
# 4  
Old 02-26-2016
Hello jayaP,

Please use code tags as per forum rules in your posts for Commands/Inputs/Codes which you use into your post.
Following may help you in same too.
Code:
awk '($0 !~ /^[0-9]/){A=A?A OFS $0:$0;next} ($0 ~ /^[0-9]/ && A){print A;A=""} {A=$0} END{print A}' OFS="-"  Input_file

Output will be as follows.
Code:
5, jaya, male, 4-5-90, single-smart
6, prakash, male, 5-4-84, married-fair
7, raghavi, female, 12-10-85, married-calm-talented
9, bhaskar, male, 29-12-92, single-studios

On a Solaris/SunOS system, change awkto /usr/xpg4/bin/awk , /usr/xpg6/bin/awk , or nawk.
EDIT: Adding a non-one liner form of solution here too.
Code:
awk '($0 !~ /^[0-9]/)           {
                                        A=A?A OFS $0:$0;
                                        next
                                }
     ($0 ~ /^[0-9]/ && A)       {
                                        print A;
                                        A=""
                                }
                                {
                                        A=$0
                                }
     END                        {
                                        print A
                                }
    ' OFS="-"   Input_file

Thanks,
R. Singh
Last edited by RavinderSingh13; 02-26-2016 at 03:06 AM.. Reason: Added non-one liner form of solution now.
This User Gave Thanks to RavinderSingh13 For This Post:
jayaP
# 5  
Old 02-26-2016
Hi Ravinder,

Thanks for your solution. I'm testing it at my end. Can you please let me know if we can write the output of the awk program to a new file?

Regards,
Jaya
# 6  
Old 02-26-2016
Hello Jaya,

Yes, you could write the output of code into a new file as follows.
Code:
awk '($0 !~ /^[0-9]/){A=A?A OFS $0:$0;next} ($0 ~ /^[0-9]/ && A){print A;A=""} {A=$0} END{print A}' OFS="-"  Input_file > Output_file

Following is a non-one liner form of solution too.
Code:
awk '($0 !~ /^[0-9]/)           {
                                        A=A?A OFS $0:$0;
                                        next
                                }
     ($0 ~ /^[0-9]/ && A)       {
                                        print A;
                                        A=""
                                }
                                {
                                        A=$0
                                }
     END                        {
                                        print A
                                }
    ' OFS="-"   Input_file  > Output_file

In both of the above codes, output will be stored in file named Output_file.
Hope this helps you.

Thanks,
R. Singh
# 7  
Old 02-26-2016
How about
Code:
awk '{printf "%s%s", /^[0-9]+/?XS:"-", $0; XS = RS} END {printf RS}' file
5, jaya, male, 4-5-90, single-smart
6, prakash, male, 5-4-84, married-fair
7, raghavi, female, 12-10-85, married-calm-talented
9, bhaskar, male, 29-12-92, single-studios
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

awk with sed to combine lines and remove specific odd # pattern from line

In the awk piped to sed below I am trying to format file by removing the odd xxxx_digits and whitespace after, then move the even xxxx_digit to the line above it and add a space between them. There may be multiple lines in file but they are in the same format. The Filename_ID line is the last line... (4 Replies)
Discussion started by: cmccabe
4 Replies

2. Shell Programming and Scripting

awk to remove lines that do not start with digit and combine line or lines

I have been searching and trying to come up with an awk that will perform the following on a converted text file (original is a pdf). 1. Since the first two lines are (begin with) text they are removed 2. if $1 is a number then all text is merged (combined) into one line until the next... (3 Replies)
Discussion started by: cmccabe
3 Replies

3. UNIX for Advanced & Expert Users

Need to combine two lines in a file based on first character of each line in a file

Hi, I have a requirement where I need to combine two lines in a file based on first character of each line in a file. Please find the sample content of the file below: Code: _______________________ 5, jaya, male, 4-5-90, single smart 6, prakash, male, 5-4-84, married fair 7, raghavi,... (1 Reply)
Discussion started by: jayaP
1 Replies

4. UNIX for Dummies Questions & Answers

Need to combine two lines in a file based on first character of each line in a file

Hi, I have a requirement where I need to combine two lines in a file based on first character of each line in a file. Please find the sample content of the file below: Code: _______________________ 5, jaya, male, 4-5-90, single smart 6, prakash, male, 5-4-84, married fair 7, raghavi,... (1 Reply)
Discussion started by: jayaP
1 Replies

5. Shell Programming and Scripting

awk to combine lines from line with pattern match to a line that ends in a pattern

I am trying to combine lines with these conditions: 1. First line starts with text of "libname VALUE db2 datasrc" where VALUE can be any text. 2. If condition1 is met then continue to combine lines through a line that ends with a semicolon. 3. Ignore case when matching patterns and remove any... (5 Replies)
Discussion started by: Wes Kem
5 Replies

6. Shell Programming and Scripting

Need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line...

Hello, I need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line... An example of entries in the file would be: SRVXPAPI001 ERRO JUN24 07:28:34 1775 REASON= 0000, PROCID= #E506 #1065: TPCIPPR, INDEX= 003F ... (8 Replies)
Discussion started by: Ferocci
8 Replies

7. Shell Programming and Scripting

Combine multiple lines into single line

Hi All , I have a file with below data # User@Host: xyz @ # Query_time: t1 Lock_time: t2 Rows_sent: n1 Rows_examined: n2 SET timestamp=1396852200; select count(1) from table; # Time: 140406 23:30:01 # User@Host: abc @ # Query_time: t1 Lock_time: t2 Rows_sent: n1 Rows_examined:... (6 Replies)
Discussion started by: rakesh_411
6 Replies

8. Shell Programming and Scripting

Checking ^M character in file

i have the file <infile> with ^M charactrer. i just wnt to know through script whether the file have ^M character or not. Please let me know the script steps to check the same. Thanks in Advance Ganesh. (3 Replies)
Discussion started by: Ganesh L
3 Replies

9. Shell Programming and Scripting

Combine multiple unique lines from event log text file into one line, use PERL or AWK?

I can't decide if I should use AWK or PERL after pouring over these forums for hours today I decided I'd post something and see if I couldn't get some advice. I've got a text file full of hundreds of events in this format: Record Number : 1 Records in Seq : ... (3 Replies)
Discussion started by: Mayday22
3 Replies

10. Shell Programming and Scripting

Combine multiple lines in single line

This is related to one of my previous post but now with a slight difference: I need the "Updated:" to be in one line as well as the "Information:" on one line as well. These are in multiple lines right now as seen below. These can have 2 or more lines that needs to be in one line. System name:... (8 Replies)
Discussion started by: The One
8 Replies
Login or Register to Ask a Question