Converting newline formatting from Mac to Windows

Question

I need a conversion utility script that will convert a  sql dump file generated on Mac to one readable on Windows   This is a continuation of a problem I had here   The issue seems to be with newline formatting in text files  but I can t find a tool to make the conversion

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On Yosemite OSX  use this command   sed -e  s  M     -i    filename   where the  M sequence is achieved by pressing Ctrl V then Enter

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In Xcode 9 in the left panel open choose your file in project navigator  If file is not there  drug-and-drop it into the project navigator    On right panel find Text Settings and change Line Endings to Windows  CRLF     XCode screendump

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Windows uses carriage return   line feed for newline    r n   Unix only uses Line feed for newline    n   In conclusion  simply replace every occurence of  n by  r n  Both unix2dos and dos2unix are not by default available on Mac OSX  Fortunately  you can simply use Perl or sed to do the job   sed -e  s    r   inputfile  gt  outputfile                  UNIX to DOS   adding CRs  sed -e  s  r     inputfile  gt  outputfile                  DOS  to UNIX  removing CRs  perl -pe  s  r n  n  r  r n g  inputfile  gt  outputfile    Convert to DOS perl -pe  s  r n  n  r  n g    inputfile  gt  outputfile    Convert to UNIX perl -pe  s  r n  n  r  r g    inputfile  gt  outputfile    Convert to old Mac   Code snippet from  http   en wikipedia org wiki Newline Conversion utilities

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The following is a complete script based on the above answers along with sanity checking and works on Mac OS X and should work on other Linux   Unix systems as well  although this has not been tested       bin bash    http   stackoverflow com questions 6373888 converting-newline-formatting-from-mac-to-windows                                                                                          FIXTEXT SH by ECJB         USAGE   SCRIPT   MODE   FILENAME         MODE is one of unix2dos  dos2unix  tounix  todos  tomac     FILENAME is modified in-place     If SCRIPT is one of the modes  with or without  sh extension   then MODE       can be omitted - it is inferred from the script name      The script does use the file command to test if it is a text file or not        but this is not a guarantee                                                                                       clear script   0  modes  unix2dos dos2unix todos tounix tomac   usage         echo  USAGE    script   mode   filename      echo     echo  MODE is one of       echo  modes     echo  NOTE   The tomac mode is intended for old Mac OS versions and should not be      echo  used without good reason       echo     echo  The file is modified in-place so there is no output filename       echo  USE AT YOUR OWN RISK       echo     echo  The script does try to check if it s a binary or text file for sanity  but      echo  this is not guaranteed       echo     echo  Symbolic links to this script may use the above names and be recognized as      echo  mode operators       echo     echo  Press RETURN to exit       read answer     exit      -- Look for the mode as the scriptname mode   basename   0   sh   fname   1     -- If 2 arguments use as mode and filename if     -z   2      then mode   1   fname   2   fi    -- Check there are 1 or 2 arguments or print usage  if     -z   3  -o -z   1      then usage  fi    -- Check if the mode found is valid  validmode no for checkmode in  modes  do if    mode    checkmode     then validmode yes  fi  done   -- If not a valid mode  abort  if    validmode   no     then echo Invalid mode  mode   aborting   echo  usage  fi    -- If the file doesn t exist  abort  if     -e   fname      then echo Input file  fname does not exist   aborting   echo  usage  fi    -- If the OS thinks it s a binary file  abort  displaying file information  if   -z   file   fname    grep text       then echo Input file  fname may be a binary file   aborting   echo  file   fname   echo  usage  fi    -- Do the in-place conversion  case   mode  in     unix2dos     sed does not behave on Mac - replace w   todos  and  tounix            Plus  these variants are more universal and assume less          sed -e  s    r   -i      fname                UNIX to DOS   adding CRs                 dos2unix           sed -e  s  r     -i      fname                DOS  to UNIX  removing CRs                      unix2dos     todos            perl -pi -e  s  r n  n  r  r n g    fname     Convert to DOS                 dos2unix     tounix            perl -pi -e  s  r n  n  r  n g      fname     Convert to UNIX                 tomac            perl -pi -e  s  r n  n  r  r g      fname     Convert to old Mac                      -- Not strictly needed since mode is checked first          echo Invalid mode  mode   aborting   echo  usage            esac    -- Display result  if           0      then echo  File  fname updated with mode  mode    else echo  Conversion failed return code       echo  usage  fi

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Expanding on the answers of Anne and JosephH  using perl in a short perl script  since i m too lazy to type the perl-one-liner very time  Create a file  named for example  unix2dos pl  and put it in a directory in your path  Edit the file to contain the 2 lines      usr bin perl -wpi s  n  r n  r n g    Assuming that  which perl  returns   usr bin perl  on your system  Make the file executable  chmod u x unix2dos pl    Example    echo  hello    xxx   od -c xxx    checking that the file ends with a nl  0000000    h   e   l   l   o   n      unix2dos pl xxx   od -c xxx    checking that it ends now in cr lf  0000000    h   e   l   l   o   r   n

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Just do tr delete   tr -d   r   lt infile txt  gt outfile txt

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This is an improved version of Anne s answer -- if you use perl  you can do the edit on the file  in-place  rather than generating a new file   perl -pi -e  s  r n  n  r  r n g  file-to-convert    Convert to DOS perl -pi -e  s  r n  n  r  n g    file-to-convert    Convert to UNIX

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Here s a really simple approach  worked well for me  courtesy Davy Schmeits s Weblog    cat foo   col -b  gt  foo2   Where foo is the file that has the Control M characters at the end of the line  and foo2 the new file you are creating

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vim also can convert files from UNIX to DOS format  For example   vim hello txt  lt  lt EOF  set fileformat dos  wq EOF

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You probably want unix2dos     man unix2dos  NAME        dos2unix - DOS MAC to UNIX and vice versa text file format converter  SYNOPSIS            dos2unix  options   -c CONVMODE   -o FILE       -n INFILE OUTFILE                 unix2dos  options   -c CONVMODE   -o FILE       -n INFILE OUTFILE       DESCRIPTION        The Dos2unix package includes utilities  dos2unix  and  unix2dos  to convert plain text files in DOS or MAC format to UNIX format and vice versa   Binary files and non-        regular files  such as soft links  are automatically skipped  unless conversion is forced          Dos2unix has a few conversion modes similar to dos2unix under SunOS Solaris          In DOS Windows text files line endings exist out of a combination of two characters  a Carriage Return  CR  followed by a Line Feed  LF    In Unix text files line        endings exists out of a single Newline character which is equal to a DOS Line Feed  LF  character   In Mac text files  prior to Mac OS X  line endings exist out of a        single Carriage Return character  Mac OS X is Unix based and has the same line endings as Unix    You can either run unix2dos on your DOS Windows machine using cygwin or on your Mac using MacPorts

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Install dos2unix with homebrew Run find    -type f -exec dos2unix       to recursively convert all line-endings within current folder

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You can install unix2dos with Homebrew  brew install unix2dos   Then you can do this   unix2dos file-to-convert   You can also convert dos files to unix   dos2unix file-to-convert

[windows] Converting newline formatting from Mac to Windows

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