How to Setup lftp - A Simple Command line FTP Program

March 5, 2015 | By
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Hi everyone, this article is about Lftp and how we can install Lftp in our Linux Operating System. Lftp is a command line based File Transfer Software also known as FTP Client which was developed by Alexander Lukyanov and was distributed as GNU General Public License. Besides FTP, it also supports FTPS, HTTP, HTTPS, HFTP, FISH, and SFTP. The program also supports FXP, allowing for data transfers between two FTP servers bypassing the client machine.

It has some awesome advanced features such as recursively mirroring entire directory trees and resuming downloads. Transfers can be scheduled for execution at a later time, bandwidth can be throttled, transfer queues can be created, and Unix shell-like job control is supported. The client can also be used interactively or automated with scripts.

Installing Lftp

Before we try to run lftp, we have make sure that it is properly installed in our Linux Distribution. Here are some commands mentioned for installing lftp in the list common distribution of Linux.

On Ubuntu 14.04 LTS

In Ubuntu 14.04 LTS and its derivatives, we can install lftp using apt manager. So, to install it, we'll need to run the following commands in a shell or a terminal under sudo privilege.

$ sudo apt-get install lftp

ubuntu install lftp

On CentOS/Fedora/RHEL

As lftp is also available in the repository of Fedora, CentOS and RHEL, we can use yum manager to install it.

$ sudo yum install lftp

fedora lftp

On Arch Linux

It is also available in Arch Linux Package Repository so, we can simply use pacman to install it.

$ sudo pacman -S lftp

archlinux install lftp

On OpenSuse

Zypper, package management software for OpenSuse can be used to install lftp. Here is the command with which one can install it on their OpenSuse machine.

$ sudo zypper install lftp

opensuse lftp install

Logging in

To login to a ftp server or sftp server, we'll first need to know about the required credential for the login like username, password, ports.

After that, we'll want to login using lftp client as basic usage.

$ lftp ftp://linoxide@localhost

ftp login

If we need to point a port to the login then, we'll need to add port as shown below.

$ lftp ftp://linoxide@localhost:21

ftp login with ports

Navigation

We can use ls to list files and directories, cd to enter into a directory.

ls and cd

Uploading and Download Files

We can use pget for downloading files from the remote server.

> pget linspeed.svg

pget lftp

We can use put for uploading files to the remote server.

> put linoxide.tar

upload with put

To resume partially downloaded files/directories, we will use the -c switch:

> mirror -c Directory

>pget -c linoxide.tar

> put -c upload.tar

Using Mirror

We can use mirror to download the whole directory pointed as the source.

> mirror remote local

download with mirror

There is also reverse mirror (mirror -R) which uploads or updates a directory tree on server.

> mirror -R local remote

upload or update with mirror reverse

To resume partially downloaded files/directories, we will use the -c switch:

> mirror -c Directory

To Queue Items to Download

We can use queue option with lftp so that we can download selected files in a queue one by one as there is an option in GUI based clients to select and download in a queue. Here's an example on it.

To prevent queue from auto transferring while you add to it :

> queue stop

Now, we'll add them into queue.

> queue mirror "directory"

> queue pget "file.tar"

After the queue has been added, we should run queue start  command.

> queue start

To remove the entire queue run the following command.

> queue -d

Segmented Downloading

Here, in this example we are segmenting files into 3 segments, one can change it according to their own need.

A pget command using segmentation is pget -n 3 file.tar, where 3 is the number of segments.

> pget -n 3 file.tar

A mirror command using segmentation is mirror --use-pget-n=3 directory, where 3 is the number of segments.

> mirror --use-pget-n=3 linxoxide

We can use jobs -v to see the speeds of the individual segments as well as the total speed.

To Stop, Resume or Kill a Transfer

To cancel a transfer we can press Ctrl+c . And to resume a download we can use the -c (--continue) switch as shown below.

> mirror -c directory

And to kill an active transfer we should run kill and to kill and delete all we'll need to run kill all as shown below.

> kill

> kill all

Exiting

To quit from lftp, we should run exit command in the terminal or inside lftp interface.

> exit

Conclusion

Hurray! We have successfully installed lftp and learned some basic major ways to use it. lftp is an awesome command line ftp client which supports a lot of additional functionality and cool features. It has a lot stuffs more than the other common ftp client. So, if you have any questions, suggestions, feedback please write them in the comment box below. Thank you ! Enjoy lftp :-)

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Comments (1)

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  1. Bobbin Zachariah says:

    fyi

    http://lwn.net/Articles/635595/ - SECURITY fix - Don't auto accept remote host SSH fingerprint

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