How to add newline character at end of file?

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06-27-2013

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How to add newline character at end of file?

Code:

 
Hi All,
 
I have following piece of code in UNIX C Shell script and I want to add one more command which can add newline at the end of file only if there is no newline character exists.
 
   foreach file (`ls $dd_PLAYCARD_EDI_IN`)
    if ( -f $dd_PLAYCARD_EDI_IN/${file} ) then
      cat -n "$dd_PLAYCARD_EDI_IN/${file}"    | \
      perl -p -e "s/\x0d\x0a/\x0a/"  | \
      sed -e 's/00000000$/22991231/' | \
      sort -k1.18,1.29               >   $DATADIR/playcard/$file

Above "for loop" retrive the file from a directory then "cat" on each file to add line number, "perl" to remove ^M (control M) characters from the end of each line, "sed" will replace last 8 zeros with 22991231 and finally sort will sort the file. After "perl" command I want to add command which can add newline character at the end of file if it do not exists.
 
Please suggest.
 
Thanks!

jnrohit2k

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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)