attributes (Extended Attributes  on  OS/2,
              uid/gid  and  file  times  on  Unix).   The zip format uses extra
              fields to include additional information for  each  entry.   Some
              extra  fields are specific to particular systems while others are
              applicable to all systems.  Normally when zip reads entries  from
              an  existing  archive, it reads the extra fields it knows, strips
              the rest, and adds the extra fields applicable  to  that  system.
              With  -X, zip strips all old fields and only includes the Unicode
              and Zip64 extra fields (currently these two extra  fields  cannot
              be disabled).

              Negating this option, -X-, includes all the default extra fields,
              but also copies over any unrecognized extra fields.

       -y
       --symlinks
              For  UNIX  and VMS (V8.3 and later), store symbolic links as such
              in the zip archive, instead of compressing and storing  the  file
              referred to by the link.  This can avoid multiple copies of files
              being included in the archive as zip recurses the directory trees
              and accesses files directly and by links.

       -z
       --archive-comment
              Prompt  for a multi‐line comment for the entire zip archive.  The
              comment is ended by a line containing just a period, or an end of
              file condition (^D on Unix, ^Z on MSDOS,  OS/2,  and  VMS).   The
              comment can be taken from a file:

                     zip ‐z foo < foowhat

       -Z cm
       --compression-method cm
              Set  the  default compression method.  Currently the main methods
              supported by zip are store and deflate.  Compression  method  can
              be set to:

              store  -  Setting  the  compression method to store forces zip to
              store entries with no compression.  This is generally faster than
              compressing entries, but results in no space  savings.   This  is
              the same as using -0 (compression level zero).

              deflate  - This is the default method for zip.  If zip determines
              that storing is better than deflation, the entry will  be  stored
              instead.

              bzip2  - If bzip2 support is compiled in, this compression method
              also becomes available.  Only some modern unzips  currently  sup‐
              port  the bzip2 compression method, so test the unzip you will be
              using before relying on archives using this  method  (compression
              method 12).

              For example, to add bar.c to archive foo using bzip2 compression:

                     zip ‐Z bzip2 foo bar.c

              The compression method can be abbreviated:

                     zip ‐Zb foo bar.c

       -#
       (-0, -1, -2, -3, -4, -5, -6, -7, -8, -9)
              Regulate  the  speed  of compression using the specified digit #,
              where -0 indicates no compression (store all files), -1 indicates
              the fastest compression speed (less compression) and -9 indicates
              the slowest compression speed (optimal compression,  ignores  the
              suffix list). The default compression level is -6.

              Though  still  being  worked,  the intention is this setting will
              control compression speed for all compression methods.  Currently
              only deflation is controlled.

       -!
       --use-privileges
              [WIN32] Use privileges (if granted)  to  obtain  all  aspects  of
              WinNT security.

       -@
       --names-stdin
              Take  the list of input files from standard input. Only one file‐
              name per line.

       -$
       --volume-label
              [MSDOS, OS/2, WIN32] Include the volume label for the drive hold‐
              ing the first file to