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.\" $OpenBSD: htpasswd.1,v 1.8 2017/07/07 16:30:06 schwarze Exp $
.\"
.\" Copyright (c) 2014 Florian Obser <florian@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: July 7 2017 $
.Dt HTPASSWD 1
.Os
.Sh NAME
.Nm htpasswd
.Nd create and update user authentication files
.Sh SYNOPSIS
.Nm
.Op Ar file
.Ar login
.Nm
.Fl I
.Op Ar file
.Sh DESCRIPTION
.Nm
is used to create and update user authentication files for
HTTP daemons.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl I
Switch to batch mode.
.Nm
reads exactly one line from standard input and splits it at the first
.Qo : Qc .
The first part is the login, the second part is the password which
.Nm
then hashes using
.Xr bcrypt 3 .
.El
.Pp
.Nm
prompts for a password and generates a hash using
.Xr bcrypt 3 .
A line suitable for a password file is written to the standard output.
If invoked with two arguments
.Po
or one argument if the
.Fl I
flag is used
.Pc
user authentication
.Ar file
is updated.
.Sh SEE ALSO
.Xr bcrypt 3
.Sh HISTORY
This reimplemented version of
.Nm
has been available since
.Ox 5.6 .
.Sh AUTHORS
.An Florian Obser Aq Mt florian@openbsd.org
implemented
.Nm
from scratch after Apache httpd was removed from
.Ox
base.
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