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0b2e2896b9
tweak the uri text, specifically removing some markup to make it a bit more readable; issue reported by - and diff ok - millert OpenBSD-Commit-ID: 8b56a20208040b2d0633536fd926e992de37ef3f
237 lines
5.0 KiB
Groff
237 lines
5.0 KiB
Groff
.\"
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.\" scp.1
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.\"
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.\" Author: Tatu Ylonen <ylo@cs.hut.fi>
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.\"
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.\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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.\" All rights reserved
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.\"
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.\" Created: Sun May 7 00:14:37 1995 ylo
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.\"
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.\" $OpenBSD: scp.1,v 1.76 2017/10/25 06:19:46 jmc Exp $
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.\"
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.Dd $Mdocdate: October 25 2017 $
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.Dt SCP 1
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.Os
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.Sh NAME
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.Nm scp
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.Nd secure copy (remote file copy program)
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.Sh SYNOPSIS
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.Nm scp
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.Op Fl 346BCpqrv
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.Op Fl c Ar cipher
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.Op Fl F Ar ssh_config
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.Op Fl i Ar identity_file
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.Op Fl l Ar limit
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.Op Fl o Ar ssh_option
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.Op Fl P Ar port
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.Op Fl S Ar program
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.Ar source ... target
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.Sh DESCRIPTION
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.Nm
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copies files between hosts on a network.
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It uses
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.Xr ssh 1
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for data transfer, and uses the same authentication and provides the
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same security as
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.Xr ssh 1 .
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.Nm
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will ask for passwords or passphrases if they are needed for
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authentication.
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.Pp
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The
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.Ar source
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and
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.Ar target
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may be specified as a local pathname, a remote host with optional path
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in the form
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.Sm off
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.Oo user @ Oc host : Op path ,
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.Sm on
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or a URI in the form
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.Sm off
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.No scp:// Oo user @ Oc host Oo : port Oc Op / path .
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.Sm on
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Local file names can be made explicit using absolute or relative pathnames
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to avoid
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.Nm
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treating file names containing
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.Sq :\&
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as host specifiers.
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.Pp
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When copying between two remote hosts, if the URI format is used, a
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.Ar port
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may only be specified on the
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.Ar target
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if the
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.Fl 3
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option is used.
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl 3
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Copies between two remote hosts are transferred through the local host.
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Without this option the data is copied directly between the two remote
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hosts.
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Note that this option disables the progress meter.
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.It Fl 4
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Forces
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.Nm
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to use IPv4 addresses only.
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.It Fl 6
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Forces
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.Nm
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to use IPv6 addresses only.
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.It Fl B
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Selects batch mode (prevents asking for passwords or passphrases).
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.It Fl C
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Compression enable.
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Passes the
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.Fl C
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flag to
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.Xr ssh 1
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to enable compression.
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.It Fl c Ar cipher
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Selects the cipher to use for encrypting the data transfer.
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This option is directly passed to
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.Xr ssh 1 .
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.It Fl F Ar ssh_config
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Specifies an alternative
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per-user configuration file for
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.Nm ssh .
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This option is directly passed to
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.Xr ssh 1 .
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.It Fl i Ar identity_file
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Selects the file from which the identity (private key) for public key
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authentication is read.
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This option is directly passed to
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.Xr ssh 1 .
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.It Fl l Ar limit
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Limits the used bandwidth, specified in Kbit/s.
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.It Fl o Ar ssh_option
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Can be used to pass options to
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.Nm ssh
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in the format used in
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.Xr ssh_config 5 .
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This is useful for specifying options
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for which there is no separate
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.Nm scp
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command-line flag.
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For full details of the options listed below, and their possible values, see
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.Xr ssh_config 5 .
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.Pp
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.Bl -tag -width Ds -offset indent -compact
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.It AddressFamily
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.It BatchMode
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.It BindAddress
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.It CanonicalDomains
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.It CanonicalizeFallbackLocal
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.It CanonicalizeHostname
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.It CanonicalizeMaxDots
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.It CanonicalizePermittedCNAMEs
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.It CertificateFile
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.It ChallengeResponseAuthentication
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.It CheckHostIP
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.It Ciphers
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.It Compression
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.It ConnectionAttempts
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.It ConnectTimeout
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.It ControlMaster
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.It ControlPath
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.It ControlPersist
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.It GlobalKnownHostsFile
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.It GSSAPIAuthentication
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.It GSSAPIDelegateCredentials
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.It HashKnownHosts
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.It Host
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.It HostbasedAuthentication
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.It HostbasedKeyTypes
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.It HostKeyAlgorithms
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.It HostKeyAlias
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.It HostName
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.It IdentitiesOnly
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.It IdentityAgent
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.It IdentityFile
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.It IPQoS
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.It KbdInteractiveAuthentication
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.It KbdInteractiveDevices
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.It KexAlgorithms
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.It LogLevel
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.It MACs
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.It NoHostAuthenticationForLocalhost
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.It NumberOfPasswordPrompts
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.It PasswordAuthentication
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.It PKCS11Provider
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.It Port
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.It PreferredAuthentications
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.It ProxyCommand
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.It ProxyJump
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.It PubkeyAcceptedKeyTypes
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.It PubkeyAuthentication
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.It RekeyLimit
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.It SendEnv
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.It ServerAliveInterval
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.It ServerAliveCountMax
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.It StrictHostKeyChecking
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.It TCPKeepAlive
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.It UpdateHostKeys
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.It UsePrivilegedPort
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.It User
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.It UserKnownHostsFile
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.It VerifyHostKeyDNS
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.El
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.It Fl P Ar port
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Specifies the port to connect to on the remote host.
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Note that this option is written with a capital
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.Sq P ,
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because
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.Fl p
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is already reserved for preserving the times and modes of the file.
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.It Fl p
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Preserves modification times, access times, and modes from the
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original file.
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.It Fl q
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Quiet mode: disables the progress meter as well as warning and diagnostic
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messages from
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.Xr ssh 1 .
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.It Fl r
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Recursively copy entire directories.
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Note that
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.Nm
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follows symbolic links encountered in the tree traversal.
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.It Fl S Ar program
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Name of
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.Ar program
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to use for the encrypted connection.
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The program must understand
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.Xr ssh 1
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options.
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.It Fl v
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Verbose mode.
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Causes
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.Nm
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and
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.Xr ssh 1
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to print debugging messages about their progress.
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This is helpful in
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debugging connection, authentication, and configuration problems.
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.El
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.Sh EXIT STATUS
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.Ex -std scp
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.Sh SEE ALSO
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.Xr sftp 1 ,
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.Xr ssh 1 ,
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.Xr ssh-add 1 ,
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.Xr ssh-agent 1 ,
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.Xr ssh-keygen 1 ,
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.Xr ssh_config 5 ,
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.Xr sshd 8
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.Sh HISTORY
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.Nm
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is based on the rcp program in
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.Bx
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source code from the Regents of the University of California.
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.Sh AUTHORS
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.An Timo Rinne Aq Mt tri@iki.fi
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.An Tatu Ylonen Aq Mt ylo@cs.hut.fi
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