grub: cat

 
 16.3.9 cat
 ----------
 
  -- Command: cat [--dos] file
      Display the contents of the file FILE.  This command may be useful
      to remind you of your OS's root partition:
 
           grub> cat /etc/fstab
 
      If the '--dos' option is used, then carriage return / new line
      pairs will be displayed as a simple new line.  Otherwise, the
      carriage return will be displayed as a control character ('<d>') to
      make it easier to see when boot problems are caused by a file
      formatted using DOS-style line endings.