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UUIDPARSE(1) User Commands UUIDPARSE(1)

NAME

uuidparse - a utility to parse unique identifiers

SYNOPSIS

uuidparse [options] uuid

DESCRIPTION

This command will parse unique identifier inputs from either command line arguments or standard input. The inputs are white-space separated.

OUTPUT

Variants

NCS Network Computing System identifier. These were the original UUIDs.
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.

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.

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.

AUTHORS

Sami Kerola <kerolasa@iki.fi>

SEE ALSO

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

REPORTING BUGS

For bug reports, use the issue tracker <https://github.com/util-linux/util-linux/issues>.

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/>.

2026-04-28 util-linux 2.42.1