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Full Discussion: Program to combine two lines in a file on checking the first character of each line
Top Forums Shell Programming and Scripting Program to combine two lines in a file on checking the first character of each line Post 302967684 by RavinderSingh13 on Friday 26th of February 2016 08:16:03 AM
Old 02-26-2016
Hello Jaya,

Could you please try following and let me know if this helps you.
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, marriedcalm-talented
9, bhaskar, male, 29-12-92, single-studios

Explanation for above code is as follows too.
Code:
awk '($0 !~ /^[0-9]/){  ##### Checking if line is NOT starting from digits or not here.
A=A?A OFS $0:$0;        ##### creating a variable named A which will having current line's value appending to itself whenever above condition will be TRUE.
next}                   ##### skipping all statements now by using next keyword.
($0 ~ /^[0-9]/ && A){   ##### Checking if line is starting from digits or not here.
print A;                ##### printing the variable A's value now.
A=""}                   ##### Nullifying the value of variable A now.
{A=$0}                  ##### taking current line's value to variable A now.
END{                    ##### starting END block now.
print A}                ##### printing the variable A's value now.
' OFS=""  Input_file    ##### setting OFS(Output field separator) value to NULL here and mentioning Input_file name here too.

Thanks,
R. Singh
 

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LEARN ABOUT DEBIAN

mlm

FBB::mlm(3bobcat)					      OFoldStream manipulator						 FBB::mlm(3bobcat)

NAME

       FBB::mlm - Manipulator modifying left margins of OFoldStream objects

SYNOPSIS

       #include <bobcat/ofoldstream> or
       #include <bobcat/ofoldstreambuf>
       Linking option: -lbobcat

DESCRIPTION

       The  mlm  class	implements  a  manipulator that can be inserted into OFoldStream objects to modify the stream's left margin by a requested
       amount. The request cannot result in a negative left margin value. If a negative left margin would be the arithmetic result of the  request
       then left margin 0 will silently be used.

       Depending  on  the  tab-setting	of  the  OFoldStream  the  inserted value represents the number of blank space characters or the number of
       tab-characters that will be added to the left margin.

       The request will be processed at the next newline character or std::flush or std::endl manipulator that is inserted into the stream.  If  a
       line  is  still empty once an mlm object and a flush manipulator are inserted into the stream then the new left margin will be effective at
       the next word inserted into that line (cf., the example section below)

       A bad_cast exception is thrown when the manipulator is inserted into an ostream that is not using a OFoldStreambuf buffer.

NAMESPACE

       FBB
       All constructors, members, operators and manipulators, mentioned in this man-page, are defined in the namespace FBB.

INHERITS FROM

       -

CONSTRUCTOR

       o      mlm(int addValue):
	      The standard copy constructor is available.

MEMBER FUNCTIONS

       There are no public or protected member functions in this class.

EXAMPLE

	   #include <iostream>
	   #include <bobcat/ofoldstream>

	   using namespace std;
	   using namespace FBB;

	   int main()
	   {
	       OFoldStream out(cout, 0, 80);
	       out << "hello world (left margin is 0)" << mlm(4) << "
"
		      "this uses a 4 character wide left margin
" <<
		       mlm(-10) << flush <<
		       "left margin -6 changed to 0, active on this line
";
	       return 0;
	   }

FILES

       bobcat/mlm - defines the class interface

SEE ALSO

       bobcat(7), manipulators(3bobcat), lm(3bobcat), ofoldstream(3bobcat)

BUGS

       None Reported.

DISTRIBUTION FILES

       o      bobcat_3.01.00-x.dsc: detached signature;

       o      bobcat_3.01.00-x.tar.gz: source archive;

       o      bobcat_3.01.00-x_i386.changes: change log;

       o      libbobcat1_3.01.00-x_*.deb: debian package holding the libraries;

       o      libbobcat1-dev_3.01.00-x_*.deb: debian package holding the libraries, headers and manual pages;

       o      http://sourceforge.net/projects/bobcat: public archive location;

BOBCAT

       Bobcat is an acronym of `Brokken's Own Base Classes And Templates'.

COPYRIGHT

       This is free software, distributed under the terms of the GNU General Public License (GPL).

AUTHOR

       Frank B. Brokken (f.b.brokken@rug.nl).

libbobcat1-dev_3.01.00-x.tar.gz 				     2005-2012							 FBB::mlm(3bobcat)
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