count the number of lines in text data with sfk count for Windows, Mac OS X and Linux.

sfk count [-same[lines] infile

count total number of text lines, or group identical
text lines, counting the number of occurences per line.

may read chain text from a previous command,
or text lines from a given input filename.
lines larger than 4096 characters are hard wrapped.

options
   -samelines  count number of occurences per line, then
               prefix lines by TAB separated counter.
   -digits=n   with -samelines, change no. of counter digits
   -case       case sensitive text comparison

see also
   sfk filter  with -unique, to strip duplicate lines.
   sfk view    a GUI tool that can filter text just by
               typing or clicking on a word, telling
               the number of result lines instantly.

web reference
   http://stahlworks.com/sfk-count

examples
   sfk count in.txt
      tell number of lines in file in.txt
   sfk filter words.txt +count -same -digits=10
      tell how often each line occurs in words.txt,
      and format the occurence counter with 10 digits.