text: ffiillee -- Command
  
  Guess a file's type
  ffiillee _f_i_l_e ...
  
  ffiillee examines each  _f_i_l_e and takes an educated guess  as to its type.  ffiillee
  recognizes the  following classes of  text files: files of  commands to the
  shell; files  containing the source for a C  program; files containing yyaacccc
  or lleexx source;  files containing assembly language source; files containing
  unformatted documents  that can  be passed to  nnrrooffff; and plain  text files
  that fit into none of the above categories.
  
  ffiillee recognizes the following classes of non-text or binary data files: the
  various  forms of  archives,  object files,  and link  modules for  various
  machines, and miscellaneous binary data files.
  
  _S_e_e _A_l_s_o
  ccoommmmaannddss, llss, ssiizzee
  
  _N_o_t_e_s
  Because ffiillee  only reads a set  amount of data to determine  the class of a
  text file, mistakes can happen.
  