basename(1)

     NAME
          basename - strip directory and suffix from filenames

     SYNOPSIS
          basename name [suffix]
          basename {--help,--version}

     DESCRIPTION
          This documentation is no longer being maintained and may be
          inaccurate or incomplete.  The Texinfo documentation is now
          the authoritative source.

          This manual page documents the GNU version of basename.  The
          basename command removes any leading directory components
          from name; If suffix is specified and is identical to the
          end of name, it is removed from name as well.  basename
          prints the resulting name on the standard output.

        OPTIONS
          --help
               Print a usage message on standard output and exit
               successfully.

          --version
               Print version information on standard output then exit
               successfully.