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I'm using Linux (centos) machine, I already connected to the other system using ssh. Now my question is how can I copy files from one system to another system?
Suppose, in my environment, I have two system like System A and System B. I'm using System A machine and some other using System B machine.
How can I copy a file from System B to System A?
And, copy a file from System A to System B?
Syntax:
scp <source> <destination>
To copy a file from B to A while logged into B:
scp /path/to/file username@a:/path/to/destination
To copy a file from B to A while logged into A:
scp username@b:/path/to/file /path/to/destination
scp to copy a file to or from your local machine (System A) while logged in to a remote server (System B) with ssh. scp will log you into the remote server, copy the file, then log you out again in one process, so just run it from a shell on your local machine. That being said, you can use scp if you're logged into System B via SSH and want to copy files between System B and System C.
Dec 24, 2013 at 16:40
-P to specify the TCP port on the remote host. This catches me every time, because ssh uses -p.
Apr 28, 2016 at 18:22
In case if you need an alternate approach.
Install sshfs. if you use ubuntu/debian:
sudo apt-get install sshfs
or, if you use centos/rhel:
sudo yum install fuse-sshfs
or, in macOS
brew install sshfs
Create an empty dir
mkdir /home/user/testdir
"link" or "mount" the two directories
sshfs user@server.com:/remote/dir /home/user/testdir
"unlink" the dirs
fusermount -u /home/user/testdir
On BSD and macOS, to unmount the filesystem:
umount mountpoint
or
diskutil unmount mountpoint
For more see here, linuxjournal.com libfuse/sshfs
apt-get is a Debianism; the correct package manager would be yum or, for really old flavors of CentOS, up2date or rpm.
Dec 24, 2013 at 21:30
cp, mv, rm, rsync, unison... The scp command would only be able to copy files.
Sometimes you need to get fancy with tar:
tar -C / -cf - \
opt/widget etc/widget etc/cron.d/widget etc/init.d/widget \
--exclude=opt/widget/local.conf |
ssh otherhost tar -C / -xvf -
If you want to keep the files on both systems in sync then have a look at the rsync program:
If they are running SCP / SSH on a different port, make sure you specify the uppercase -P port option.
Example:
scp -P 7121 /users/admin/downloads/* root@155.138.150.12:/home/
-P option is then required, you don't really help with the problem at hand. Try focusing on recent questions.
Feb 7, 2021 at 1:39
A simpler method that works with via SSH controlled NVIDIA Jetson computers is to connect with SFTP (SSH File Transfer Protocol).
Suppose I wish to move the document UFO_blueprint.odt from NASA's remote servers and move it into my Documents.
cd to where you want the file saved
$ cd Documents
Connect
$ sftp sammy@your_server_ip_or_remote_hostname
Go the directory that contains the file to be transferred.
$ cd NASA/secret_files/
Transfer
$ get UFO_blueprint.odt
To get the complete directory, instead use
$ get -r secret_files/
Unix/Linux recursive copy of files and folders over a secure shell using the code following:
scp -r <host@machine_name:from_remote_directory_path> <to_local_directory_path>
A full example might look like:
scp -r sizwe@hprobook:./home/sizwe/PycharmProjects ./home/immaculate/OtherPycharmProjects
Note if you do not have a DNS server to resolve hostnames, use your IP address instead. The example above might look like this
scp -r 192.168.43.167:./home/sizwe/PycharmProjects ./home/immaculate/OtherPycharmProjects
If speed (and not security) is your priority, then check out netcat. Before I start, let me warn you that this should be used only in a trusted network because netcat transfers are not encrypted.
First, on the receiving side, run this:
nc -lp 22222 >FileName
Then on the sending side:
nc -w3 <receiver IP or hostname> 22222 <FileName
Notes:
ssh user@domain "printf 'dir' | pax -w " | pax -rUse it instead of scp. Pax standardized [1] by IEEE, and scp deprecated by lwn[2] usersg.
[1] https://man.bsd.lv/pax.1#STANDARDS [2] https://lwn.net/Articles/835962/
From someone else on "the CLI-way" ;-)
If you have one of the common OSes, you can install pigz that is the same as gzip except that it will use multiple cores and be quicker over a fast network. My command is a bit different.
tar cf - -C /opt -S <dir> | pigz | ssh <target> "pigz -d | tar xf - -C /opt -S"
or the other way to get files
ssh <target> "tar cf - -C /opt -S <dir> | pigz" | pigz -d | tar xf - -C /opt -S
or backup the root fs with
ssh <target> "tar cf - -C / --one-file-system -S --numeric-owner . | pigz" > root.tgz
Many of the answers suggest scp, but it has since been deprecated in OpenSSH 8.0 on April 17th, 2019.
Assuming a file in the directory /usr/home/risner called records.dat, you copy the file using sftp:
sftp username@host:/path/
You will see:
Changing to: /path/.
sftp>
Copy a file from your local machine to the destination with:
put /usr/home/risner/records.dat
Download a file from the remote machine with:
get records.dat /usr/home/risner
You can run it non-interactively by setting up password-less authentication and calling it this way:
echo "put /usr/home/risner/records.dat" | sftp username@host:/path/
scpto be a cumber stone often. If it could suite your needs, try this out linuxjournal.com/article/8904 It mounts the remote file system locally.dir/on remote machine usingssh:tar -c dir/ | gzip | gpg -c | ssh user@remote 'dd of=dir.tar.gz.gpg'$wget -r --level=9 --no-parent --reject "index.html*" ftp://<USERID>:<PASSWORD>@<MACHINE-NAME>/path/toReference1 Reference2scp; for that onescpis fine and most easy way as answer, so mods please remove duplicate flag as if somebody will go to other one, most useful answer will be missed out.