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--- cs101:scpfromlinux [2018/11/09 13:27] – localadmin
+++ cs101:scpfromlinux [2020/09/08 16:51] (current) – [What Is SCP?] localadmin
@@ Line 1: / Line 1: @@
-====== How to transfer files between Linux/Mac computers using the [[cs101:cli|Command Line Interface]] (CLI) ======
+====== How to transfer files between Linux/Mac computers using SCP from the Command Line ======
+This information is provided for the [[https://www.ubuntu.com/|Ubuntu]]/Debian editions of Linux used in the CS Department. Other Linux versions may vary.
+===== What Is SCP? =====
+In Linux, you can use the **Secure Copy Protocol** (**[[cs101:scp|SCP]]**) from the command line (**[[cs101:cli|CLI]]**) (the scp command) to securely copy files and directories between remote hosts without explicitly logging into the remote systems. The scp command uses **[[cs101:ssh|SSH]]** to transfer data, so it does requires a password or passphrase for authentication. Unlike **[[cs101:rcp|RCP]]** or **[[cs101:ftp|FTP]]**, SCP encrypts both the file and any passwords exchanged so that anyone snooping on the network cannot view them.
+==== Basic Syntax ====
+The most basic form of the command is:
+    scp [options] source_username@source_host:source_directory/source_filename destination_username@destination_host:destination_directory/destination_filename
+The location of the source file is specified by source_username@source_host:source_directory/source_filename, which includes:
+  *   Name of the account on the host computer (source_username)
+  *   Hostname (i.e. [[cs101:fqdn|FQDN]]) of the computer on which the source file resides (source_host)
+  *   Name of the directory containing the source file (source_directory)
+  *   Filename of the source file (source_filename)
+The location to which the source file will be copied is specified by destination_username@destination_host:destination_directory/destination_filename, which includes:
+  * Name of the account on the destination computer (destination_username)
+  * Hostname of the computer to which the source file will be copied (destination_host)
+  * Name of the directory to which the source file will be copied (destination_directory)
+  * Filename of the copy (destination_filename)
+Options can include things like [-P //port//] if not connecting to the standard SSH port 22.
+You can find more information on Ubuntu SCP in the [[http://manpages.ubuntu.com/manpages/focal/en/man1/scp.1.html|Ubuntu man pages]]