i run 1 while trying parse text file perl. original file looks in vim: 
when tried print 2nd column (87 here), somehow, ^m showed in vim: 
i'm curious "^m" is? know? thanks!
^m ascii character 13, known carriage return. ms-dos uses carriage return followed line feed (ascii 10) mark end of line. unix systems use line feed only. "see" carriage return when using editor thinks file using unix style line endings has ms-dos style line endings.
