Learn how to a build a cloud-first strategyRegister Now

x
?
Solved

Concatenate in Unix (ksh)

Posted on 2008-06-13
7
Medium Priority
?
1,414 Views
Last Modified: 2013-12-26
Hi,

I have a file which contains data as follow in each line.

123
456
789

What I need to do in here is to take the data from the file and put it into  another file (fileb.txt) as follow:

'123', '456', '789'

So far I have the code as follow :

cat fileA.txt | while read line;
do
    fileb=`cat FileA.txt`
    $fileb=$fileb","$fileb
done

Please advise.

Thanks....
0
Comment
Question by:msalam65
  • 4
  • 2
7 Comments
 
LVL 85

Expert Comment

by:ozo
ID: 21781085
while read line;
do
    fileb="$fileb,'$line'"
done < fileA.txt
echo $fileb > fileb.txt
0
 
LVL 85

Expert Comment

by:ozo
ID: 21781137
to remove the first , echo ${fileb#,}
0
 
LVL 40

Accepted Solution

by:
omarfarid earned 2000 total points
ID: 21781252
try

#!/bin/ksh
cat 55.txt | while read line
do
    fileb=$fileb",'"$line"'"
done
echo $fileb | sed 's/^\,//' > fileB.txt
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 40

Expert Comment

by:omarfarid
ID: 21781290
please replace 55.txt with your fileA.txt
0
 
LVL 1

Expert Comment

by:Joomlajohn
ID: 21781353
I think awk is the tool your looking for:
This handles what you want except for a final comma at the end.

awk '{printf "\"%s\",",$0; next}{print}' fileA.txt > fileB.txt

awk is a powerful tool more information at this link:
http://www.vectorsite.net/tsawk_1.html

Also, regular expressions will be another great tool in your belt if you choose to learn how to use them.
http://gnosis.cx/publish/programming/regular_expressions.html
http://www.regular-expressions.info/tutorial.html
0
 
LVL 85

Expert Comment

by:ozo
ID: 21782569
perl -le "print join',',map{chomp;qq('"'$_'"')}<>" fileA.txt > fileB.txt
or if you you can use " instead of ' and you don't need to remove the trailing ,
perl -lpe '$\=",";s/(.*)/"$1"/'  fileA.txt > fileB.txt
0
 
LVL 85

Expert Comment

by:ozo
ID: 21782679
what was wrong with
while read line;
do
    fileb="$fileb,'$line'"
done < fileA.txt
echo ${fileb#,}> fileb.txt
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This is to be the first in a series of articles demonstrating the development of a complete windows based application using the MFC classes.  I’ll try to keep each article focused on one (or a couple) of the tasks that one may meet.   Introductio…
Introduction: Displaying information on the statusbar.   Continuing from the third article about sudoku.   Open the project in visual studio. Status bar – let’s display the timestamp there.  We need to get the timestamp from the document s…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Are you ready to place your question in front of subject-matter experts for more timely responses? With the release of Priority Question, Premium Members, Team Accounts and Qualified Experts can now identify the emergent level of their issue, signal…
Suggested Courses

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question