ZCKDL(1)

🌸 ZCKDL 💖

okay bestie, so zckdl is a lil utility that just... downloads a zchunk file? but like, smart. it's the General Commands Manual entry for it, and honestly? she's iconic for it.

✨ NAME ✨

zckdl — download a zchunk file 🦋

no cap, that's the whole job. download a zchunk file.

🌈 SYNOPSIS 🌈

zckdl [--fail-no-ranges] [-q | --quiet] [-s file | --source=file]
      [-v | --verbose] url
zckdl -? | --help | --usage | --version

like, either you give her a url and some vibes (flags), or you just ask her a question with -?, --help, --usage or --version. that's it, that's the shape of it 🎀

💅 DESCRIPTION 💅

The zckdl utility attempts to download a zchunk file in an optimized way, taking into consideration the chunked structure.

bestie the WHOLE POINT is that zchunk files are chunked, so she's not out here re-downloading bytes she already has. it's giving efficiency. it's giving main character energy. 🔥

The zckdl utility accepts the following optional arguments:

• --fail-no-ranges — if the server does not support ranges, fail instead of downloading the whole file. like, she'd rather walk away than do it the slow way 💀
• -q | --quiet — quiet operation; only display warning and error messages. and if you specify it twice, only display error messages. double quiet. triple-dog quiet. shhh 🙈
• -s | --source — specify the file to use as a source, with the premise that most of the chunks in the downloaded file will be the same. so if you already have the basically-the-same file sitting there, hand it over and she'll reuse what matches 🫶
• -v, --verbose — verbose operation; display some diagnostic output. the opposite vibe. she'll tell you everything she's doing ✨
• -?, --help — display program usage information and exit.
• --usage — display brief program usage information and exit.
• --version — display program version information and exit.

🎀 EXIT STATUS 🎀

The zckdl utility exits 0 on success, and >0 if an error occurs.

so 0 = slay 💖, anything bigger = not slay 😭

🌟 EXAMPLES 🌟

Download a zchunk file that is hopefully not much different from the previous version:

zckdl -s doc1.txt.zck https://example.com/doc2.txt.zck

like, you've got doc1.txt.zck already, the new one is doc2.txt.zck, and they're hopefully mostly the same chunks. so she uses doc1.txt.zck as the -s source and only grabs what actually changed. that's the move. that's the whole flex. 👑

🔥 SEE ALSO 🔥

unzck(1), zck(1), zck_delta_size(1), zck_gen_zdict(1), zck_read_header(1)

go read those too, bestie, the whole zchunk cinematic universe is right there 🦋

💜 AUTHOR 💜

The zckdl utility was written by Jonathan Dieter <jdieter@gmail.com>.

This manual page stub was written by Peter Pentchev <roam@ringlet.net>.

and that's the page!! this one came from the Debian manual pages, dated May 31, 2020, and that's the whole thing bestie — go download some chunks, ily, bye 💖✨🎀