convert Multiline file in one line file


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# 1  
convert Multiline file in one line file

Hi,
Hi, we have one input file and file contain single line and multiline date. We want to convert multiline line in one line. Each file start with sequence of 000000001, 000000002, 000000003 so on. We want to convert the multiline line in one line. All (single line and converted multiline to single line) data store in output file. Please help.
***********************************************************
Ex. INPUT.txt
000000001 12335 Infinte solutiong PO box copyright
000000002 12335 Dhahran solutiong
PO box copyright
***********************************************************
************************************************************
Ex. output.txt
000000001 12335 Infinte solutiong PO box copyright
000000002 12335 Dhahrasolutiong PO box copyright
******************************************************
# 2  
Code:
cat multiline.txt | perl -e ' while ( <> ) { 
  chomp; 
  print "\n" if m/^\d{9}\s.*/ ;
  print "$_ ";
} 
print "\n";'

The removal of the first empty line is left as an excercise to the reader Smilie
This User Gave Thanks to Andre_Merzky For This Post:
# 3  
Thanks for exercise. but above code is not converting multiline into one line.
# 4  
Quote:
Originally Posted by humaemo
Thanks for exercise. but above code is not converting multiline into one line.
Hmm, interesting, seems to work ok for me:

Code:
merzky@thinkie:~/test/unix.com$ cat multiline.txt 
000000001 12335 Infinte solutiong PO box copyright
000000002 12335 Dhahran solutiong
PO box copyright

merzky@thinkie:~/test/unix.com$ cat multiline.txt | perl -e ' while ( <> ) { 
>   chomp; 
>   print "\n" if m/^\d{9}\s.*/ ;
>   print "$_ ";
> } 
> print "\n";'

000000001 12335 Infinte solutiong PO box copyright 
000000002 12335 Dhahran solutiong PO box copyright 
merzky@thinkie:~/test/unix.com$

What is the output you are seeing?
This User Gave Thanks to Andre_Merzky For This Post:
# 5  
now it is working. thanks for your help

Last edited by humaemo; 07-08-2011 at 09:30 AM..
# 6  
Code:
sed -e :a -e '$!N;s/\n\([^00]\)/\1/;ta' -e 'P;D' INPUT.txt


Last edited by Franklin52; 07-08-2011 at 02:51 PM.. Reason: Please use code tags for data and code samples, thank you
# 7  
Quote:
Originally Posted by ltomuno
sed -e :a -e '$!N;s/\n\([^00]\)/\1/;ta' -e 'P;D' INPUT.txt
Well, that is nicer and quicker than mine I think - kudos! :-)
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