How to update one file in a zip archive

Question

Is it possible to replace a file in a zip file without unzipping deleting the old file adding the new file and rezipping it back?

Reason is I have a zip file which i

Answer 1

There is also the -f option that will freshen the zip file. It can be used to update ALL files which have been updated since the zip was generated (assuming they are in the same place within the tree structure within the zip file).

If your file is named /myfiles/myzip.zip all you have to do is

zip -f /myfiles/myzip.zip