What's the best way of doing dos2unix on a 500k line file, in Windows? [closed]

Answer 1

Here is a Perl one-liner, taken from http://www.technocage.com/~caskey/dos2unix/

#!/usr/bin/perl -pi
s/\r\n/\n/;

You can run it as follows:

perl dos2unix.pl < file.dos > file.unix

Or, you can run it also in this way (the conversion is done in-place):

perl -pi dos2unix.pl file.dos

And here is my (naive) C version:

#include 

int main(void)
{
   int c;
   while( (c = fgetc(stdin)) != EOF )
      if(c != '\r')
         fputc(c, stdout);
   return 0;
}

You should run it with input and output redirection:

dos2unix.exe < file.dos > file.unix