there is no man page on this....
Copyright (C) 1990-1996 Mark Adler, Richard B. Wales, Jean-loup Gailly
Onno van der Linden and Kai Uwe Rommel. Type 'zip -L' for the software License.
Zip 2.1 (April 27th 1996). Usage:
zip [-options] [-b path] [-t mmddyy] [-n suffixes] [zipfile list] [-xi list]
The default action is to add or replace zipfile entries from list, which
can include the special name - to compress standard input.
If zipfile and list are omitted, zip compresses stdin to stdout.
-f freshen: only changed files -u update: only changed or new files
-d delete entries in zipfile -m move into zipfile (delete files)
-k force MSDOS (8+3) file names -g allow growing existing zipfile
-r recurse into directories -j junk (don't record) directory names
-0 store only -l convert LF to CR LF (-ll CR LF to LF)
-1 compress faster -9 compress better
-q quiet operation -v verbose operation/print version info
-c add one-line comments -z add zipfile comment
-b use "path" for temp file -t only do files after "mmddyy"
-@ read names from stdin -o make zipfile as old as latest entry
-x exclude the following names -i include only the following names
-F fix zipfile (-FF try harder) -D do not add directory entries
-A adjust self-extracting exe -J junk zip file prefix (unzipsfx)
-T test zipfile integrity -X eXclude eXtra file attributes
-y store symbolic links as the link instead of the referenced file
-h show this help -n don't compress these suffixes