Skip to main content

Linux copy or backup files to remote machine


Copying or backing up files to the remote machine is a good practice if hard disk space is not a concern.

Having a backup on the same machine is like the old saying "putting eggs in one basket".

Backing up data on another machine would simply eradicate the worries of losing data provided that the backup is really a backup.

Backup should be tested as often as possible.

Backup is for disaster recovery and it should be able to cover the disaster and not add a burden.

In Linux "tar" is a good old tool which does a pretty awesome job to backup or copy files.

TAR - tape archiver, as the name implies it is designed for tape backup.

To automate backup using “cron” scheduler, "tar" is a good choice since it will only require the 'user name', 'remote machine IP address or hostname' and the path on the remote machine where the file should be copied.

Once the above requirements are known, tar will be able to copy to the remote machine and will not ask for any password.

Using automated scheduler like "cron", “tar” is ideal for remote copying but of course, other commands or tool can be used but sometimes requires manually typing the password or configuring both machines to trust each other using some certificates.

Since tar, was designed for tapes once all the necessary options are provided on the command and no other issues, tar would backup or copy the files to the remote machine without any user intervention.

Here's the command:

tar cvzf - /path_to/local/folder | ssh [remote-user-name] @[remote-ip-address] "dd of=/path_on/remote/server/file_name_data.tar.gz"

cvzf - options for the tar command.

Consult "man tar" to know more about those options.


Comments

Popular posts from this blog

Copy a single file using robocopy

Copy a single file using robocopy from a local folder to a shared folder on the network.
A simple rule of thumb before any disaster strike, don't interchange the source and the destination.

If source and destination is mistakenly reverse, files might get overwritten. To avoid any loss of data do a test with a dummy file to ensure things work perfectly.
Robocopy [source][destination]   [file to be copied]
robocopy c:\local_c_folder  \\PC_network\shared_folder   file_to_be_copied_xx.txt
The command will be completed successfully provided the network access right has no issues.

Robocopy works quite good on large files. A simple copy or xcopy command will also work but the speed might vary.

Robocopy is free it can be accessed from command line. No need to install the resource kit tool if the operating system is Windows 7 or newer version.

Copy files with selected file extension using PowerShell and Robocopy:

$extension = ('.pdf', '.jpg', '.txt')
gci d:\WorkFolde…

WMIC get computer name

WMIC get computer model, manufacturer, computer name and  username.
WMIC is a command-line tool and that can generate information about computer model, its manufacturer, its username and other informations depending on the parameters provided.
Why would you need a command line tool if there’s a GUI to check?
If you have 20 or 100 computers, or even more. It’s quite a big task just checking the GUI to check the computer model and username.
If you have remote computers, you need to delegate someone in the remote office or location to check.
Or you can just write a batch file or script to automate the task.
Here’s the code below on how get computer model, manufacturer and the username.
Open an elevated command prompt and type:
wmic computersystem get "Model","Manufacturer", "Name", "UserName"
Just copy and paste the code above, the word “computersystem” does not need to be change to a computer name.
A sample output below will be generated if the co…