path

   1.   A   {bang   path}  or  explicitly  routed  Internet  address;  a
   node-by-node  specification  of  a  link between two machines. Though
   these are now obsolete as a form of addressing, they still show up in
   diagnostics and trace headers occasionally (e.g. in NNTP headers).

   2.  [Unix] A filename, fully specified relative to the root directory
   (as  opposed  to  relative  to  the  current directory; the latter is
   sometimes called a relative path). This is also called a pathname.

   3. [Unix and MS-DOS/Windows] The search path, an environment variable
   specifying  the  directories in which the {shell} (COMMAND.COM, under
   MS-DOS)  should  look  for commands. Other, similar constructs abound
   under Unix (for example, the C preprocessor has a search path it uses
   in looking for #include files).

[glossary]