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To obtain a fresh zip file just like as tar does, do I have to perform rm foo.zip before executing zip?

$ mkdir foo; touch foo/bar
$ zip -r foo.zip foo
  adding: foo/ (stored 0%)
  adding: foo/bar (stored 0%)
$ rm foo/bar; touch foo/baz
$ zip -r foo.zip foo
  adding: foo/ (stored 0%)
  adding: foo/baz (stored 0%)
$ unzip -l foo.zip
Archive:  foo.zip
  Length      Date    Time    Name
---------  ---------- -----   ----
        0  2011-10-27 07:49   foo/
        0  2011-10-27 07:49   foo/bar
        0  2011-10-27 07:49   foo/baz
---------                     -------
        0                     3 files
share|improve this question
up vote 13 down vote accepted

Use the -FS option to "file sync"

zip -FSr foo.zip foo

This will add any new files in the folder to the zip, and delete any files from the zip that aren't in the folder.

share|improve this answer
    
Thank you for your answer! – asari Jan 16 '12 at 7:07
    
Which version of zip has this option? My zip command does not recognise "-S" – Jayan Jun 26 '14 at 11:08
1  
The switch is -FS not -F and -S together. This has been there since zip 3.0 at least. Check man zip. – Paul Jun 26 '14 at 13:53

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