mirror of
https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git
synced 2024-12-14 12:25:51 +08:00
caf8ce4cc4
badblocks.8.in, chattr.1.in, dumpe2fs.8.in, e2label.8.in, fsck.8.in, lsattr.1.in, mke2fs.8.in, mklost+found.8.in, tune2fs.8.in, uuidgen.1.in: Update man page to use a more standard format (bold option flags and italicized variables), as suggested by Andreas Dilger (adilger@enel.ucalgary.ca) ChangeLog, e2fsck.8.in: e2fsck.8.in: Update man page to use a more standard format (bold option flags and italicized variables), as suggested by Andreas Dilger (adilger@enel.ucalgary.ca) ChangeLog, uuid_generate.3.in: uuid_generate.8.in: Update man page to use a more standard format (bold option flags and italicized variables), as suggested by Andreas Dilger (adilger@enel.ucalgary.ca)
67 lines
1.9 KiB
Groff
67 lines
1.9 KiB
Groff
.\" Copyright 1999 Andreas Dilger (adilger@enel.ucalgary.ca)
|
|
.\"
|
|
.\" This man page was created for libuuid.so.1.1 from e2fsprogs-1.14.
|
|
.\"
|
|
.\" This file may be copied under the terms of the GNU Public License.
|
|
.\"
|
|
.\" Created Wed Mar 10 17:42:12 1999, Andreas Dilger
|
|
.TH UUIDGEN 1 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@"
|
|
.SH NAME
|
|
uuidgen \- command\-line utility to create a new UUID value
|
|
.SH SYNOPSIS
|
|
.B uuidgen
|
|
[
|
|
.B \-r
|
|
|
|
|
.B \-t
|
|
]
|
|
.SH DESCRIPTION
|
|
The
|
|
.B uuidgen
|
|
program creates a new universally unique identifier (UUID) using the
|
|
.BR libuuid (3)
|
|
library. The new UUID can reasonably be considered unique among
|
|
all UUIDs created on the local system,
|
|
and among UUIDs created on other systems in the past
|
|
and in the future.
|
|
.PP
|
|
There are two types of UUID's which
|
|
.B uuidgen
|
|
can generate: time-based UUID's and random-based UUID's. By
|
|
default
|
|
.B uuidgen
|
|
will generate a random-based UUID if a high-quality random number
|
|
generator is present. Otherwise, it will chose a time-based UUID. It
|
|
is possible to force the generation of one of these two
|
|
UUID types by using the
|
|
.B \-r
|
|
or
|
|
.B \-t
|
|
options.
|
|
.SH OPTIONS
|
|
.TP
|
|
.B \-r
|
|
Generate a random-based UUID. This method creates a UUID consisting mostly
|
|
of random bits. It requires that the operating system have a high
|
|
quality random number generator, such as
|
|
.IR /dev/random .
|
|
.TP
|
|
.B \-t
|
|
Generate a time-based UUID. This method creates a UUID based on the system
|
|
clock plus the system's ethernet hardware address, if present.
|
|
.SH RETURN VALUE
|
|
The UUID of the form 1b4e28ba-2fa1-11d2-883f-b9a761bde3fb (in
|
|
.BR printf (3)
|
|
format "%08x-%04x-%04x-%04x-%012x") is output to the standard output.
|
|
.SH "CONFORMING TO"
|
|
OSF DCE 1.1
|
|
.SH AUTHOR
|
|
.B uuidgen
|
|
was written by Andreas Dilger for libuuid.
|
|
.SH AVAILABILITY
|
|
.B uuidgen
|
|
is part of libuuid from the e2fsprogs package and is available for anonymous
|
|
ftp from tsx\-11.mit.edu (and its mirrors) in /pub/linux/packages/ext2fs.
|
|
.SH "SEE ALSO"
|
|
.BR libuuid (3)
|