UUIDPARSE(1)

💖 UUIDPARSE(1) 💖

okay bestie, so this is the uuidparse page from the User Commands section of the manual, and it's literally the moment your UUIDs stop being mysterious little hyphen-soup and start being known. let's get into it 🦋

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✨ NAME ✨

uuidparse — a utility to parse unique identifiers 🌸

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✨ SYNOPSIS ✨

uuidparse [options] uuid

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✨ DESCRIPTION ✨

bestie. here's the whole vibe: this command parses unique identifier inputs, and it will happily take them either from command line arguments or from standard input. the inputs are white-space separated, so you can just yeet a whole pile of them at it. periodt. 💅

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✨ OUTPUT ✨

Variants 👑

• NCS — Network Computing System identifier. these were the original UUIDs, the OGs, the blueprint. ✨
• DCE — The Open Software Foundation's (OSF) Distributed Computing Environment UUIDs.
• Microsoft — Microsoft Windows platform globally unique identifier (GUID). 🪟
• other — Unknown variant. usually invalid input data. 💀

Types 🎀

• nil — Special type for zero in type file.
• time-based — The DCE time based. ⏰
• DCE — The DCE time and MAC Address.
• name-based — RFC 4122 md5sum hash.
• random — RFC 4122 random. 🎲
• sha1-based — RFC 4122 sha-1 hash.
• unknown — Unknown type. usually invalid input data. 🙈

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✨ OPTIONS ✨

• -J, --json — Use JSON output format.
• -n, --noheadings — Do not print a header line.
• -o, --output — Specify which output columns to print. Use --help to get a list of all supported columns.
• -r, --raw — Use the raw output format.
• -h, --help — Display help text and exit.
• -V, --version — Display version and exit.

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✨ ENVIRONMENT ✨

• LIBSMARTCOLS_DEBUG=all — enables libsmartcols debug output.
• LIBSMARTCOLS_DEBUG_PADDING=on — use visible padding characters.
• LIBSMARTCOLS_JSON=compact|lines — Controls JSON output format when using --json. Supported values are compact for JSON output with minimal whitespace, and lines for JSON Lines format (one JSON object per line). If unset or set to any other value, pretty-printed JSON is used.

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✨ AUTHORS ✨

Sami Kerola <kerolasa@iki.fi> — thank you for your service, icon 🫶

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✨ SEE ALSO ✨

uuidgen(1), libuuid(3), RFC 4122 <https://tools.ietf.org/html/rfc4122>

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✨ REPORTING BUGS ✨

For bug reports, use the issue tracker <https://github.com/util-linux/util-linux/issues>. not me submitting a bug report at 3am but go off 💅

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✨ AVAILABILITY ✨

The uuidparse command is part of the util-linux package which can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>.

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okay so that's the whole page, no skips, no crumbs left behind. go parse something gorgeous, bestie 🌈

this has been util-linux 2.42.4, dated 2026-09-21 — mwah, sending u a forehead kiss and a perfectly formatted UUID 💖🧚⭐