scp(1)


NAME

     scp --- secure copy (remote file copy program)

SYNOPSIS

     scp [-12346BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]
     [-l limit] [-o ssh_option] [-P port] [-S program]
     [[user@]host1:]file1 ... [[user@]host2:]file2

DESCRIPTION

     scp copies files between hosts on a network.  It uses ssh(1) for data
     transfer, and uses the same authentication and provides the same security
     as ssh(1).  scp will ask for passwords or passphrases if they are needed
     for authentication.

     File names may contain a user and host specification to indicate that the
     file is to be copied to/from that host.  Local file names can be made
     explicit using absolute or relative pathnames to avoid scp treating file
     names containing ':' as host specifiers.  Copies between two remote hosts
     are also permitted.

     The options are as follows:

     -1      Forces scp to use protocol 1.

     -2      Forces scp to use protocol 2.

     -3      Copies between two remote hosts are transferred through the local
         host.  Without this option the data is copied directly between
         the two remote hosts.  Note that this option disables the
         progress meter.

     -4      Forces scp to use IPv4 addresses only.

     -6      Forces scp to use IPv6 addresses only.

     -B      Selects batch mode (prevents asking for passwords or
         passphrases).

     -C      Compression enable.  Passes the -C flag to ssh(1) to enable
         compression.

     -c cipher
         Selects the cipher to use for encrypting the data transfer.  This
         option is directly passed to ssh(1).

     -F ssh_config
         Specifies an alternative per-user configuration file for ssh.
         This option is directly passed to ssh(1).

     -i identity_file
         Selects the file from which the identity (private key) for public
         key authentication is read.  This option is directly passed to
         ssh(1).

     -l limit
         Limits the used bandwidth, specified in Kbit/s.

     -o ssh_option
         Can be used to pass options to ssh in the format used in
         ssh_config(5).  This is useful for specifying options for which
         there is no separate scp command-line flag.  For full details of
         the options listed below, and their possible values, see
         ssh_config(5).

               AddressFamily
               BatchMode
               BindAddress
               CanonicalDomains
               CanonicalizeFallbackLocal
               CanonicalizeHostname
               CanonicalizeMaxDots
               CanonicalizePermittedCNAMEs
               CertificateFile
               ChallengeResponseAuthentication
               CheckHostIP
               Cipher
               Ciphers
               Compression
               CompressionLevel
               ConnectionAttempts
               ConnectTimeout
               ControlMaster
               ControlPath
               ControlPersist
               GlobalKnownHostsFile
               GSSAPIAuthentication
               GSSAPIDelegateCredentials
               HashKnownHosts
               Host
               HostbasedAuthentication
               HostbasedKeyTypes
               HostKeyAlgorithms
               HostKeyAlias
               HostName
               IdentitiesOnly
               IdentityAgent
               IdentityFile
               IPQoS
               KbdInteractiveAuthentication
               KbdInteractiveDevices
               KexAlgorithms
               LogLevel
               MACs
               NoHostAuthenticationForLocalhost
               NumberOfPasswordPrompts
               PasswordAuthentication
               PKCS11Provider
               Port
               PreferredAuthentications
               Protocol
               ProxyCommand
               ProxyJump
               PubkeyAcceptedKeyTypes
               PubkeyAuthentication
               RekeyLimit
               RhostsRSAAuthentication
               RSAAuthentication
               SendEnv
               ServerAliveInterval
               ServerAliveCountMax
               StrictHostKeyChecking
               TCPKeepAlive
               UpdateHostKeys
               UsePrivilegedPort
               User
               UserKnownHostsFile
               VerifyHostKeyDNS

     -P port
         Specifies the port to connect to on the remote host.  Note that
         this option is written with a capital 'P', because -p is already
         reserved for preserving the times and modes of the file.

     -p      Preserves modification times, access times, and modes from the
         original file.

     -q      Quiet mode: disables the progress meter as well as warning and
         diagnostic messages from ssh(1).

     -r      Recursively copy entire directories.  Note that scp follows
         symbolic links encountered in the tree traversal.

     -S program
         Name of program to use for the encrypted connection.  The program
         must understand ssh(1) options.

     -v      Verbose mode.  Causes scp and ssh(1) to print debugging messages
         about their progress.  This is helpful in debugging connection,
         authentication, and configuration problems.

EXIT STATUS

     The scp utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     sftp(1), ssh(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), ssh_config(5),
     sshd(8)

HISTORY

     scp is based on the rcp program in BSD source code from the Regents of
     the University of California.

AUTHORS

     Timo Rinne tri@iki.fi
     Tatu Ylonen ylo@cs.hut.fi





Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.





Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.


Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.





Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.


Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.





Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.


Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.