Rclone

Logo

Rclone is a command line program to sync files and directories to and from

Features

Links

Install

Rclone is a Go program and comes as a single binary file.

Download the relevant binary.

Or alternatively if you have Go installed use

go get github.com/ncw/rclone

and this will build the binary in $GOPATH/bin. If you have built rclone before then you will want to update its dependencies first with this (remove -f if using go < 1.4)

go get -u -v -f github.com/ncw/rclone/...

See the Usage section of the docs for how to use rclone, or run rclone -h.

linux binary downloaded files install example

unzip rclone-v1.17-linux-amd64.zip
cd rclone-v1.17-linux-amd64
#copy binary file
sudo cp rclone /usr/sbin/
sudo chown root:root /usr/sbin/rclone
sudo chmod 755 /usr/sbin/rclone
#install manpage
sudo mkdir -p /usr/local/share/man/man1
sudo cp rclone.1 /usr/local/share/man/man1/
sudo mandb

Configure

First you'll need to configure rclone. As the object storage systems have quite complicated authentication these are kept in a config file .rclone.conf in your home directory by default. (You can use the --config option to choose a different config file.)

The easiest way to make the config is to run rclone with the config option:

rclone config

See the following for detailed instructions for

Usage

Rclone syncs a directory tree from one storage system to another.

Its syntax is like this

Syntax: [options] subcommand <parameters> <parameters...>

Source and destination paths are specified by the name you gave the storage system in the config file then the sub path, eg "drive:myfolder" to look at "myfolder" in Google drive.

You can define as many storage paths as you like in the config file.

Subcommands

rclone copy source:path dest:path

Copy the source to the destination. Doesn't transfer unchanged files, testing by size and modification time or MD5SUM. Doesn't delete files from the destination.

rclone sync source:path dest:path

Sync the source to the destination, changing the destination only. Doesn't transfer unchanged files, testing by size and modification time or MD5SUM. Destination is updated to match source, including deleting files if necessary. Since this can cause data loss, test first with the --dry-run flag.

rclone ls [remote:path]

List all the objects in the the path with size and path.

rclone lsd [remote:path]

List all directories/containers/buckets in the the path.

rclone lsl [remote:path]

List all the objects in the the path with modification time, size and path.

rclone md5sum [remote:path]

Produces an md5sum file for all the objects in the path. This is in the same format as the standard md5sum tool produces.

rclone mkdir remote:path

Make the path if it doesn't already exist

rclone rmdir remote:path

Remove the path. Note that you can't remove a path with objects in it, use purge for that.

rclone purge remote:path

Remove the path and all of its contents.

rclone check source:path dest:path

Checks the files in the source and destination match. It compares sizes and MD5SUMs and prints a report of files which don't match. It doesn't alter the source or destination.

rclone config

Enter an interactive configuration session.

rclone help

Prints help on rclone commands and options.

Options

Rclone has a number of options to control its behaviour.

Options which use TIME use the go time parser. A duration string is a possibly signed sequence of decimal numbers, each with optional fraction and a unit suffix, such as "300ms", "-1.5h" or "2h45m". Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h".

Options which use SIZE use kByte by default. However a suffix of k for kBytes, M for MBytes and G for GBytes may be used. These are the binary units, eg 210, 220, 2**30 respectively.

--bwlimit=SIZE

Bandwidth limit in kBytes/s, or use suffix k|M|G. The default is 0 which means to not limit bandwidth.

For example to limit bandwidth usage to 10 MBytes/s use --bwlimit 10M

This only limits the bandwidth of the data transfer, it doesn't limit the bandwith of the directory listings etc.

--checkers=N

The number of checkers to run in parallel. Checkers do the equality checking of files during a sync. For some storage systems (eg s3, swift, dropbox) this can take a significant amount of time so they are run in parallel.

The default is to run 8 checkers in parallel.

-c, --checksum

Normally rclone will look at modification time and size of files to see if they are equal. If you set this flag then rclone will check MD5SUM and size to determine if files are equal.

This is very useful when transferring between remotes which store the MD5SUM on the object which include swift, s3, drive, and google cloud storage.

Eg rclone --checksum sync s3:/bucket swift:/bucket would run much quicker than without the --checksum flag.

When using this flag, rclone won't update mtimes of remote files if they are incorrect as it would normally.

--config=CONFIG_FILE

Specify the location of the rclone config file. Normally this is in your home directory as a file called .rclone.conf. If you run rclone -h and look at the help for the --config option you will see where the default location is for you. Use this flag to override the config location, eg rclone --config=".myconfig" .config.

--contimeout=TIME

Set the connection timeout. This should be in go time format which looks like 5s for 5 seconds, 10m for 10 minutes, or 3h30m.

The connection timeout is the amount of time rclone will wait for a connection to go through to a remote object storage system. It is 1m by default.

-n, --dry-run

Do a trial run with no permanent changes. Use this in combination with the -v flag to see what rclone would do without actually doing it. Useful when setting up the sync command.

--log-file=FILE

Log all of rclone's output to FILE. This is not active by default. This can be useful for tracking down problems with syncs in combination with the -v flag.

--modify-window=TIME

When checking whether a file has been modified, this is the maximum allowed time difference that a file can have and still be considered equivalent.

The default is 1ns unless this is overridden by a remote. For example OS X only stores modification times to the nearest second so if you are reading and writing to an OS X filing system this will be 1s by default.

This command line flag allows you to override that computed default.

-q, --quiet

Normally rclone outputs stats and a completion message. If you set this flag it will make as little output as possible.

--size-only

Normally rclone will look at modification time and size of files to see if they are equal. If you set this flag then rclone will check only the size.

This can be useful transferring files from dropbox which have been modified by the desktop sync client which doesn't set checksums of modification times in the same way as rclone.

When using this flag, rclone won't update mtimes of remote files if they are incorrect as it would normally.

--stats=TIME

Rclone will print stats at regular intervals to show its progress.

This sets the interval.

The default is 1m. Use 0 to disable.

--timeout=TIME

This sets the IO idle timeout. If a transfer has started but then becomes idle for this long it is considered broken and disconnected.

The default is 5m. Set to 0 to disable.

--transfers=N

The number of file transfers to run in parallel. It can sometimes be useful to set this to a smaller number if the remote is giving a lot of timeouts or bigger if you have lots of bandwidth and a fast remote.

The default is to run 4 file transfers in parallel.

-v, --verbose

If you set this flag, rclone will become very verbose telling you about every file it considers and transfers.

Very useful for debugging.

-V, --version

Prints the version number

Developer options

These options are useful when developing or debugging rclone. There are also some more remote specific options which aren't documented here which are used for testing. These start with remote name eg --drive-test-option.

--cpuprofile=FILE

Write cpu profile to file. This can be analysed with go tool pprof.

Google Drive

Paths are specified as drive:path

Drive paths may be as deep as required, eg drive:directory/subdirectory.

The initial setup for drive involves getting a token from Google drive which you need to do in your browser. rclone config walks you through it.

Here is an example of how to make a remote called remote. First run:

 rclone config

This will guide you through an interactive setup process:

n) New remote
d) Delete remote
q) Quit config
e/n/d/q> n
name> remote
What type of source is it?
Choose a number from below
 1) swift
 2) s3
 3) local
 4) drive
type> 4
Google Application Client Id - leave blank to use rclone's.
client_id> 
Google Application Client Secret - leave blank to use rclone's.
client_secret> 
Remote config
Go to the following link in your browser
https://accounts.google.com/o/oauth2/auth?access_type=&approval_prompt=&client_id=XXXXXXXXXXXX.apps.googleusercontent.com&redirect_uri=urn%3XXXXX%3Awg%3Aoauth%3XX.0%3Aoob&response_type=code&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdrive&state=state
Log in, then type paste the token that is returned in the browser here
Enter verification code> X/XXXXXXXXXXXXXXXXXX-XXXXXXXXX.XXXXXXXXX-XXXXX_XXXXXXX_XXXXXXX
--------------------
[remote]
client_id = 
client_secret = 
token = {"AccessToken":"xxxx.x.xxxxx_xxxxxxxxxxx_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx","RefreshToken":"1/xxxxxxxxxxxxxxxx_xxxxxxxxxxxxxxxxxxxxxxxxxx","Expiry":"2014-03-16T13:57:58.955387075Z","Extra":null}
--------------------
y) Yes this is OK
e) Edit this remote
d) Delete this remote
y/e/d> y

You can then use it like this,

List directories in top level of your drive

rclone lsd remote:

List all the files in your drive

rclone ls remote:

To copy a local directory to a drive directory called backup

rclone copy /home/source remote:backup

Modified time

Google drive stores modification times accurate to 1 ms.

Revisions

Google drive stores revisions of files. When you upload a change to an existing file to google drive using rclone it will create a new revision of that file.

Revisions follow the standard google policy which at time of writing was

Deleting files

By default rclone will delete files permanently when requested. If sending them to the trash is required instead then use the --drive-use-trash flag.

Limitations

Drive has quite a lot of rate limiting. This causes rclone to be limited to transferring about 2 files per second only. Individual files may be transferred much faster at 100s of MBytes/s but lots of small files can take a long time.

Amazon S3

Paths are specified as remote:bucket (or remote: for the lsd command.) You may put subdirectories in too, eg remote:bucket/path/to/dir.

Here is an example of making an s3 configuration. First run

rclone config

This will guide you through an interactive setup process.

No remotes found - make a new one
n) New remote
q) Quit config
n/q> n
name> remote
What type of source is it?
Choose a number from below
 1) swift
 2) s3
 3) local
 4) google cloud storage
 5) dropbox
 6) drive
type> 2
AWS Access Key ID.
access_key_id> accesskey
AWS Secret Access Key (password). 
secret_access_key> secretaccesskey
Region to connect to.
Choose a number from below, or type in your own value
 * The default endpoint - a good choice if you are unsure.
 * US Region, Northern Virginia or Pacific Northwest.
 * Leave location constraint empty.
 1) us-east-1
 * US West (Oregon) Region
 * Needs location constraint us-west-2.
 2) us-west-2
[snip]
 * South America (Sao Paulo) Region
 * Needs location constraint sa-east-1.
 9) sa-east-1
 * If using an S3 clone that only understands v2 signatures - eg Ceph - set this and make sure you set the endpoint.
10) other-v2-signature
 * If using an S3 clone that understands v4 signatures set this and make sure you set the endpoint.
11) other-v4-signature
region> 1
Endpoint for S3 API.
Leave blank if using AWS to use the default endpoint for the region.
Specify if using an S3 clone such as Ceph.
endpoint> 
Location constraint - must be set to match the Region. Used when creating buckets only.
Choose a number from below, or type in your own value
 * Empty for US Region, Northern Virginia or Pacific Northwest.
 1) 
 * US West (Oregon) Region.
 2) us-west-2
 * US West (Northern California) Region.
 3) us-west-1
 * EU (Ireland) Region.
 4) eu-west-1
[snip]
location_constraint> 1
Remote config
--------------------
[remote]
access_key_id = accesskey
secret_access_key = secretaccesskey
region = us-east-1
endpoint = 
location_constraint = 
--------------------
y) Yes this is OK
e) Edit this remote
d) Delete this remote
y/e/d> y
Current remotes:

Name                 Type
====                 ====
remote               s3

e) Edit existing remote
n) New remote
d) Delete remote
q) Quit config
e/n/d/q> q

This remote is called remote and can now be used like this

See all buckets

rclone lsd remote:

Make a new bucket

rclone mkdir remote:bucket

List the contents of a bucket

rclone ls remote:bucket

Sync /home/local/directory to the remote bucket, deleting any excess files in the bucket.

rclone sync /home/local/directory remote:bucket

Modified time

The modified time is stored as metadata on the object as X-Amz-Meta-Mtime as floating point since the epoch accurate to 1 ns.

Multipart uploads

rclone supports multipart uploads with S3 which means that it can upload files bigger than 5GB. Note that files uploaded with multipart upload don't have an MD5SUM.

Ceph

Ceph is an object storage system which presents an Amazon S3 interface.

To use rclone with ceph, you need to set the following parameters in the config.

access_key_id = Whatever
secret_access_key = Whatever
endpoint = https://ceph.endpoint.goes.here/
region = other-v2-signature

Note also that Ceph sometimes puts / in the passwords it gives users. If you read the secret access key using the command line tools you will get a JSON blob with the / escaped as \/. Make sure you only write / in the secret access key.

Eg the dump from Ceph looks something like this (irrelevant keys removed).

{
    "user_id": "xxx",
    "display_name": "xxxx",
    "keys": [
        {
            "user": "xxx",
            "access_key": "xxxxxx",
            "secret_key": "xxxxxx\/xxxx"
        }
    ],
}

Because this is a json dump, it is encoding the / as \/, so if you use the secret key as xxxxxx/xxxx it will work fine.

Swift

Swift refers to Openstack Object Storage. Commercial implementations of that being:

Paths are specified as remote:container (or remote: for the lsd command.) You may put subdirectories in too, eg remote:container/path/to/dir.

Here is an example of making a swift configuration. First run

rclone config

This will guide you through an interactive setup process.

No remotes found - make a new one
n) New remote
q) Quit config
n/q> n
name> remote
What type of source is it?
Choose a number from below
 1) swift
 2) s3
 3) local
 4) drive
type> 1
User name to log in.
user> user_name
API key or password.
key> password_or_api_key
Authentication URL for server.
Choose a number from below, or type in your own value
 * Rackspace US
 1) https://auth.api.rackspacecloud.com/v1.0
 * Rackspace UK
 2) https://lon.auth.api.rackspacecloud.com/v1.0
 * Rackspace v2
 3) https://identity.api.rackspacecloud.com/v2.0
 * Memset Memstore UK
 4) https://auth.storage.memset.com/v1.0
 * Memset Memstore UK v2
 5) https://auth.storage.memset.com/v2.0
auth> 1
Tenant name - optional
tenant>
Remote config
--------------------
[remote]
user = user_name
key = password_or_api_key
auth = https://auth.api.rackspacecloud.com/v1.0
tenant =
--------------------
y) Yes this is OK
e) Edit this remote
d) Delete this remote
y/e/d> y

This remote is called remote and can now be used like this

See all containers

rclone lsd remote:

Make a new container

rclone mkdir remote:container

List the contents of a container

rclone ls remote:container

Sync /home/local/directory to the remote container, deleting any excess files in the container.

rclone sync /home/local/directory remote:container

Modified time

The modified time is stored as metadata on the object as X-Object-Meta-Mtime as floating point since the epoch accurate to 1 ns.

This is a defacto standard (used in the official python-swiftclient amongst others) for storing the modification time for an object.

Dropbox

Paths are specified as remote:path

Dropbox paths may be as deep as required, eg remote:directory/subdirectory.

The initial setup for dropbox involves getting a token from Dropbox which you need to do in your browser. rclone config walks you through it.

Here is an example of how to make a remote called remote. First run:

 rclone config

This will guide you through an interactive setup process:

n) New remote
d) Delete remote
q) Quit config
e/n/d/q> n
name> remote
What type of source is it?
Choose a number from below
 1) swift
 2) s3
 3) local
 4) google cloud storage
 5) dropbox
 6) drive
type> 5
Dropbox App Key - leave blank to use rclone's.
app_key> 
Dropbox App Secret - leave blank to use rclone's.
app_secret> 
Remote config
Please visit:
https://www.dropbox.com/1/oauth2/authorize?client_id=XXXXXXXXXXXXXXX&response_type=code
Enter the code: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX_XXXXXXXXXX
--------------------
[remote]
app_key = 
app_secret = 
token = XXXXXXXXXXXXXXXXXXXXXXXXXXXXX_XXXX_XXXXXXXXXXXXXXXXXXXXXXXXXXXXX
--------------------
y) Yes this is OK
e) Edit this remote
d) Delete this remote
y/e/d> y

You can then use it like this,

List directories in top level of your dropbox

rclone lsd remote:

List all the files in your dropbox

rclone ls remote:

To copy a local directory to a dropbox directory called backup

rclone copy /home/source remote:backup

Modified time and MD5SUMs

Dropbox doesn't have the capability of storing modification times or MD5SUMs so syncs will effectively have the --size-only flag set.

Limitations

Note that Dropbox is case sensitive so you can't have a file called "Hello.doc" and one called "hello.doc".

Google Cloud Storage

Paths are specified as remote:bucket (or remote: for the lsd command.) You may put subdirectories in too, eg remote:bucket/path/to/dir.

The initial setup for google cloud storage involves getting a token from Google Cloud Storage which you need to do in your browser. rclone config walks you through it.

Here is an example of how to make a remote called remote. First run:

 rclone config

This will guide you through an interactive setup process:

n) New remote
d) Delete remote
q) Quit config
e/n/d/q> n
name> remote
What type of source is it?
Choose a number from below
 1) swift
 2) s3
 3) local
 4) google cloud storage
 5) dropbox
 6) drive
type> 4
Google Application Client Id - leave blank to use rclone's.
client_id> 
Google Application Client Secret - leave blank to use rclone's.
client_secret> 
Project number optional - needed only for list/create/delete buckets - see your developer console.
project_number> 12345678
Access Control List for new objects.
Choose a number from below, or type in your own value
 * Object owner gets OWNER access, and all Authenticated Users get READER access.
 1) authenticatedRead
 * Object owner gets OWNER access, and project team owners get OWNER access.
 2) bucketOwnerFullControl
 * Object owner gets OWNER access, and project team owners get READER access.
 3) bucketOwnerRead
 * Object owner gets OWNER access [default if left blank].
 4) private
 * Object owner gets OWNER access, and project team members get access according to their roles.
 5) projectPrivate
 * Object owner gets OWNER access, and all Users get READER access.
 6) publicRead
object_acl> 4
Access Control List for new buckets.
Choose a number from below, or type in your own value
 * Project team owners get OWNER access, and all Authenticated Users get READER access.
 1) authenticatedRead
 * Project team owners get OWNER access [default if left blank].
 2) private
 * Project team members get access according to their roles.
 3) projectPrivate
 * Project team owners get OWNER access, and all Users get READER access.
 4) publicRead
 * Project team owners get OWNER access, and all Users get WRITER access.
 5) publicReadWrite
bucket_acl> 2
Remote config
Go to the following link in your browser
https://accounts.google.com/o/oauth2/auth?access_type=&approval_prompt=&client_id=XXXXXXXXXXXX.apps.googleusercontent.com&redirect_uri=urn%3Aietf%3Awg%3Aoauth%3A2.0%3Aoob&response_type=code&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fdevstorage.full_control&state=state
Log in, then type paste the token that is returned in the browser here
Enter verification code> x/xxxxxxxxxxxxxxxxxxxxxxxxxxxx.xxxxxxxxxxxxxxxxxxxxxx_xxxxxxxx
--------------------
[remote]
type = google cloud storage
client_id = 
client_secret = 
token = {"AccessToken":"xxxx.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx","RefreshToken":"x/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx_xxxxxxxxx","Expiry":"2014-07-17T20:49:14.929208288+01:00","Extra":null}
project_number = 12345678
object_acl = private
bucket_acl = private
--------------------
y) Yes this is OK
e) Edit this remote
d) Delete this remote
y/e/d> y

This remote is called remote and can now be used like this

See all the buckets in your project

rclone lsd remote:

Make a new bucket

rclone mkdir remote:bucket

List the contents of a bucket

rclone ls remote:bucket

Sync /home/local/directory to the remote bucket, deleting any excess files in the bucket.

rclone sync /home/local/directory remote:bucket

Modified time

Google google cloud storage stores md5sums natively and rclone stores modification times as metadata on the object, under the "mtime" key in RFC3339 format accurate to 1ns.

Local Filesystem

Local paths are specified as normal filesystem paths, eg /path/to/wherever, so

rclone sync /home/source /tmp/destination

Will sync /home/source to /tmp/destination

These can be configured into the config file for consistencies sake, but it is probably easier not to.

Modified time

Rclone reads and writes the modified time using an accuracy determined by the OS. Typically this is 1ns on Linux, 10 ns on Windows and 1 Second on OS X.

Filenames

Filenames are expected to be encoded in UTF-8 on disk. This is the normal case for Windows and OS X. There is a bit more uncertainty in the Linux world, but new distributions will have UTF-8 encoded files names.

If an invalid (non-UTF8) filename is read, the invalid caracters will be replaced with the unicode replacement character, '�'. rclone will emit a debug message in this case (use -v to see), eg

Local file system at .: Replacing invalid UTF-8 characters in "gro\xdf"

Changelog

Bugs and Limitations

Empty directories are left behind / not created

With remotes that have a concept of directory, eg Local and Drive, empty directories may be left behind, or not created when one was expected.

This is because rclone doesn't have a concept of a directory - it only works on objects. Most of the object storage systems can't actually store a directory so there is nowhere for rclone to store anything about directories.

You can work round this to some extent with thepurge command which will delete everything under the path, inluding empty directories.

This may be fixed at some point in Issue #100

Directory timestamps aren't preserved

For the same reason as the above, rclone doesn't have a concept of a directory - it only works on objects, therefore it can't preserve the timestamps of directories.

Frequently Asked Questions

Do all cloud storage systems support all rclone commands

Yes they do. All the rclone commands (eg sync, copy etc) will work on all the remote storage systems.

Can rclone sync directly from drive to s3

Rclone can sync between two remote cloud storage systems just fine.

Note that it effectively downloads the file and uploads it again, so the node running rclone would need to have lots of bandwidth.

The syncs would be incremental (on a file by file basis).

Eg

rclone sync drive:Folder s3:bucket

Using rclone from multiple locations at the same time

You can use rclone from multiple places at the same time if you choose different subdirectory for the output, eg

Server A> rclone sync /tmp/whatever remote:ServerA
Server B> rclone sync /tmp/whatever remote:ServerB

If you sync to the same directory then you should use rclone copy otherwise the two rclones may delete each others files, eg

Server A> rclone copy /tmp/whatever remote:Backup
Server B> rclone copy /tmp/whatever remote:Backup

The file names you upload from Server A and Server B should be different in this case, otherwise some file systems (eg Drive) may make duplicates.

License

This is free software under the terms of MIT the license (check the COPYING file included with the source code).

Copyright (C) 2012 by Nick Craig-Wood http://www.craig-wood.com/nick/

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

Authors

Contributors

Contact the rclone project

The project website is at:

There you can file bug reports, ask for help or contribute pull requests.

See also

Or email