rsync - 10 examples in 11 days (Day 07)

Day 07

10 examples in 11 days

Sync Local to Remote over SSH

Today I will talk about how we can sync files from our local machine to our remote machine using ssh.

I have a remote machine where I will be connecting to. I use ssh with a public and private key to connect to it and this way I will not have to be asked for a password.

Note: I will not show the local nor remote machines IP. Instead I will always display 111.111.111.111 IP as remote and 222.222.222.222 as local

I have a folder called ~/backup-to-upload/. Inside of this folder I store the latest backup file as a .tar.gz. This file will be sitting there waiting for me to rsync it into my remote machine. Once I have upload the tar backup, it gets deleted leaving the ~/backup-to-upload/ folder empty.

Let's see the syntax:

iamgroot@laptop:~$ rsync (1)--progress (2)--remove-source-files (3)-vhre (4)ssh (5)[backup file to upload] (6)iamgroot@111.111.111.111:(7)[remote backup folder]/

Let's see what the above syntax does:

1. --progress: shows progress while synching
2. --remove-source-files: after transfer it will remove source file
3. I used -vhre

• -v: verbose
• -h: human readable
• -r: recursive
• -e: allows us to use ssh as remote shell and execute its commands

1. ssh: invoking the ssh service to be used as remote shell.
2. backup file to upload with full path
3. ssh connection
4. remote folder

Note: If the remote folder doesn't exist it will be created

Let's see what I have at my remote machine before we run the rsync command

iamgroot@remote-instance:~$ ls
scripts

Now let's upload our tar file to the remote machine

iamgroot@laptop:~$ rsync --progress --remove-source-files -vhre ssh /home/iamgroot/backup-to-upload/backup.tar.gz  iamgroot@111.111.111.111:backups/
sending incremental file list
backup.tar.gz
            195 100%    0.00kB/s    0:00:00 (xfr#1, to-chk=0/1)

sent 295 bytes  received 43 bytes  75.11 bytes/sec
total size is 195  speedup is 0.58

Checking if the tar backup file got removed from source

iamgroot@laptop:~$ ls -a backup-to-upload/
.  ..

Empty!!!

Now let's check on the remote machine and first I will check if the folder backups was created and then if it has our backup.tar.gz

iamgroot@laptop:~$ ssh iamgroot@111.111.111.111
Last login: Thu Jul 23 00:38:46 2020 from 222.222.222.222
iamgroot@remote-instance:~$ ls
backups  scripts
iamgroot@remote-instance:~$ ls -a backups/
.  ..  backup.tar.gz

As you can see, it not just created the backups folder, it uploaded our tar file.

Awesome, another example accomplished!

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Ok, that'll be for today's example, thanks for reading, ping me if you need any help!!!

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