man(1) Manual page archive

     ln  -  make a link

     ln name1 [ name2 ]

     A link is a directory entry referring to a file; the same
     file (together with its size, all its protection informa-
     tion, etc) may have several links to it.  There is no way to
     distinguish a link to a file from its original directory
     entry; any changes in the file are effective independently
     of the name by which the file is known.

     Ln creates a link to an existing file name1.  If name2 is
     given, the link has that name; otherwise it is placed in the
     current directory and its name is the last component of

     It is forbidden to link to a directory or to link across
     file systems.

     rm (I)

     There is nothing particularly wrong with ln, but tp doesn't
     understand about links and makes one copy for each name by
     which a file is known; thus if the tape is extracted several
     copies are restored and the information that links were
     involved is lost.