this post was submitted on 08 Apr 2025
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    This town ain't big enough for the 2 of us (lemmy.world)
    submitted 1 month ago by cm0002@lemmy.world to c/linuxmemes@lemmy.world
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    [–] gandalf_der_12te@discuss.tchncs.de 65 points 1 month ago* (last edited 1 month ago) (3 children)

    zip is better than tar.gz for some applications though.

    notably, individual files can be read from a zip archive without unpacking the whole archive, different than tar.gz files.

    tar.gz files are only better if you pack and unpack the whole archive at once, but even then, they don't have much advantage. the major advantage is that you can pipe the output of tar creation over the network to another computer who decompresses the tar immediately, thus transferring a folder. zip has index at beginning/start, so it requires seek when writing or skip when reading, so it can't be streamed.

    [–] Ziglin@lemmy.world 10 points 1 month ago

    But afaik with many files in an archive a tar.gz manages higher compression ratios since each file isn't compressed individually. It probably isn't relevant unless archiving a large amount of data though.

    Does .zip have other advantages though? I don't often need just one file from an archive anyway.

    [–] piefood@piefed.social 15 points 1 month ago

    One thing that I find useful is that you can do --filesync with an existing zip, which means it only updates the files if the date/size don't match. This saves a bunch of time on large archives that don't need to be created from scratch every time.

    [–] DaforLynx@lemmy.zip 11 points 1 month ago (1 children)

    Where does 7z fit into all of this?

    [–] SoftestSapphic@lemmy.world 18 points 1 month ago

    I think that also works like a zip