If your cygwin/bash tells you that commands such as "more" cannot be
found, check whether cygwin made it into your bash search path.

Note: The "search path" is the LIST of directories/folders that get
      searched for commands.  This should be distinguished from a
      single "path" to a file or directory/folder.  In other words:
      the search path is a list of directory/folder paths.

In a cygwin/bash window, say "echo $PATH".  If you see something like
"/cygdrive/c/cygwin/bin", then all unix commands should be found.

If this is not in your search path, the problem is solved by setting
the PATH variable in the file "~/.bashrc" properly explicitly.  A line
such as

  export PATH=/cygdrive/c/cygwin/bin:$PATH

in this file should do the trick.

Alternatively, you could add this path to the Win2K search path by
editing "path" in a window which you get this way: 

right-click on "My Computer" -> Properties -> Advanced -> Environment
Variables -> System Variables/Path -> Edit.  Insert c:/cygwin/bin
semi-colon separated.  This is very unfriendly, though.