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title: "Documentation" description: "Rclone Usage" date: "2015-06-06"

Configure

First, you'll need to configure rclone. As the object storage systems have quite complicated authentication these are kept in a config file. (See the --config entry for how to find the config file and choose its location.)

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 uses a system of subcommands. For example

rclone ls remote:path # lists a re
rclone copy /local/path remote:path # copies /local/path to the remote
rclone sync /local/path remote:path # syncs /local/path to the remote

The main rclone commands with most used first

See the commands index for the full list.

Copying single files

rclone normally syncs or copies directories. However, if the source remote points to a file, rclone will just copy that file. The destination remote must point to a directory - rclone will give the error Failed to create file system for "remote:file": is a file not a directory if it isn't.

For example, suppose you have a remote with a file in called test.jpg, then you could copy just that file like this

rclone copy remote:test.jpg /tmp/download

The file test.jpg will be placed inside /tmp/download.

This is equivalent to specifying

rclone copy --files-from /tmp/files remote: /tmp/download

Where /tmp/files contains the single line

test.jpg

It is recommended to use copy when copying individual files, not sync. They have pretty much the same effect but copy will use a lot less memory.

Syntax of remote paths

The syntax of the paths passed to the rclone command are as follows.

/path/to/dir

This refers to the local file system.

On Windows only \ may be used instead of / in local paths only, non local paths must use /.

These paths needn't start with a leading / - if they don't then they will be relative to the current directory.

remote:path/to/dir

This refers to a directory path/to/dir on remote: as defined in the config file (configured with rclone config).

remote:/path/to/dir

On most backends this is refers to the same directory as remote:path/to/dir and that format should be preferred. On a very small number of remotes (FTP, SFTP, Dropbox for business) this will refer to a different directory. On these, paths without a leading / will refer to your "home" directory and paths with a leading / will refer to the root.

:backend:path/to/dir

This is an advanced form for creating remotes on the fly. backend should be the name or prefix of a backend (the type in the config file) and all the configuration for the backend should be provided on the command line (or in environment variables).

Eg

rclone lsd --http-url https://pub.rclone.org :http:

Which lists all the directories in pub.rclone.org.

Quoting and the shell

When you are typing commands to your computer you are using something called the command line shell. This interprets various characters in an OS specific way.

Here are some gotchas which may help users unfamiliar with the shell rules

Linux / OSX

If your names have spaces or shell metacharacters (eg *, ?, $, ', " etc) then you must quote them. Use single quotes ' by default.

rclone copy 'Important files?' remote:backup

If you want to send a ' you will need to use ", eg

rclone copy "O'Reilly Reviews" remote:backup

The rules for quoting metacharacters are complicated and if you want the full details you'll have to consult the manual page for your shell.

Windows

If your names have spaces in you need to put them in ", eg

rclone copy "E:\folder name\folder name\folder name" remote:backup

If you are using the root directory on its own then don't quote it (see #464 for why), eg

rclone copy E:\ remote:backup

Copying files or directories with : in the names

rclone uses : to mark a remote name. This is, however, a valid filename component in non-Windows OSes. The remote name parser will only search for a : up to the first / so if you need to act on a file or directory like this then use the full path starting with a /, or use ./ as a current directory prefix.

So to sync a directory called sync:me to a remote called remote: use

rclone sync ./sync:me remote:path

or

rclone sync /full/path/to/sync:me remote:path

Server Side Copy

Most remotes (but not all - see the overview) support server side copy.

This means if you want to copy one folder to another then rclone won't download all the files and re-upload them; it will instruct the server to copy them in place.

Eg

rclone copy s3:oldbucket s3:newbucket

Will copy the contents of oldbucket to newbucket without downloading and re-uploading.

Remotes which don't support server side copy will download and re-upload in this case.

Server side copies are used with sync and copy and will be identified in the log when using the -v flag. The move command may also use them if remote doesn't support server side move directly. This is done by issuing a server side copy then a delete which is much quicker than a download and re-upload.

Server side copies will only be attempted if the remote names are the same.

This can be used when scripting to make aged backups efficiently, eg

rclone sync remote:current-backup remote:previous-backup
rclone sync /path/to/files remote:current-backup

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 b for bytes, k for kBytes, M for MBytes, G for GBytes, T for TBytes and P for PBytes may be used. These are the binary units, eg 1, 2**10, 2**20, 2**30 respectively.

--backup-dir=DIR

When using sync, copy or move any files which would have been overwritten or deleted are moved in their original hierarchy into this directory.

If --suffix is set, then the moved files will have the suffix added to them. If there is a file with the same path (after the suffix has been added) in DIR, then it will be overwritten.

The remote in use must support server side move or copy and you must use the same remote as the destination of the sync. The backup directory must not overlap the destination directory.

For example

rclone sync /path/to/local remote:current --backup-dir remote:old

will sync /path/to/local to remote:current, but for any files which would have been updated or deleted will be stored in remote:old.

If running rclone from a script you might want to use today's date as the directory name passed to --backup-dir to store the old files, or you might want to pass --suffix with today's date.

--bind string

Local address to bind to for outgoing connections. This can be an IPv4 address (1.2.3.4), an IPv6 address (1234::789A) or host name. If the host name doesn't resolve or resolves to more than one IP address it will give an error.

--bwlimit=BANDWIDTH_SPEC

This option controls the bandwidth limit. Limits can be specified in two ways: As a single limit, or as a timetable.

Single limits last for the duration of the session. To use a single limit, specify the desired bandwidth in kBytes/s, or use a suffix b|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

It is also possible to specify a "timetable" of limits, which will cause certain limits to be applied at certain times. To specify a timetable, format your entries as "WEEKDAY-HH:MM,BANDWIDTH WEEKDAY-HH:MM,BANDWIDTH..." where: WEEKDAY is optional element. It could be writen as whole world or only using 3 first characters. HH:MM is an hour from 00:00 to 23:59.

An example of a typical timetable to avoid link saturation during daytime working hours could be:

--bwlimit "08:00,512 12:00,10M 13:00,512 18:00,30M 23:00,off"

In this example, the transfer bandwidth will be every day set to 512kBytes/sec at 8am. At noon, it will raise to 10Mbytes/s, and drop back to 512kBytes/sec at 1pm. At 6pm, the bandwidth limit will be set to 30MBytes/s, and at 11pm it will be completely disabled (full speed). Anything between 11pm and 8am will remain unlimited.

An example of timetable with WEEKDAY could be:

--bwlimit "Mon-00:00,512 Fri-23:59,10M Sat-10:00,1M Sun-20:00,off"

It mean that, the transfer bandwidh will be set to 512kBytes/sec on Monday. It will raise to 10Mbytes/s before the end of Friday. At 10:00 on Sunday it will be set to 1Mbyte/s. From 20:00 at Sunday will be unlimited.

Timeslots without weekday are extended to whole week. So this one example:

--bwlimit "Mon-00:00,512 12:00,1M Sun-20:00,off"

Is equal to this:

--bwlimit "Mon-00:00,512Mon-12:00,1M Tue-12:00,1M Wed-12:00,1M Thu-12:00,1M Fri-12:00,1M Sat-12:00,1M Sun-12:00,1M Sun-20:00,off"

Bandwidth limits only apply to the data transfer. They don't apply to the bandwidth of the directory listings etc.

Note that the units are Bytes/s, not Bits/s. Typically connections are measured in Bits/s - to convert divide by 8. For example, let's say you have a 10 Mbit/s connection and you wish rclone to use half of it

  • 5 Mbit/s. This is 5/8 = 0.625MByte/s so you would use a --bwlimit 0.625M parameter for rclone.

On Unix systems (Linux, MacOS, …) the bandwidth limiter can be toggled by sending a SIGUSR2 signal to rclone. This allows to remove the limitations of a long running rclone transfer and to restore it back to the value specified with --bwlimit quickly when needed. Assuming there is only one rclone instance running, you can toggle the limiter like this:

kill -SIGUSR2 $(pidof rclone)

If you configure rclone with a remote control then you can use change the bwlimit dynamically:

rclone rc core/bwlimit rate=1M

--buffer-size=SIZE

Use this sized buffer to speed up file transfers. Each --transfer will use this much memory for buffering.

When using mount or cmount each open file descriptor will use this much memory for buffering. See the mount documentation for more details.

Set to 0 to disable the buffering for the minimum memory usage.

--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 the file hash and size to determine if files are equal.

This is useful when the remote doesn't support setting modified time and a more accurate sync is desired than just checking the file size.

This is very useful when transferring between remotes which store the same hash type on the object, eg Drive and Swift. For details of which remotes support which hash type see the table in the overview section.

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 the config file is in your home directory as a file called .config/rclone/rclone.conf (or .rclone.conf if created with an older version). If $XDG_CONFIG_HOME is set it will be at $XDG_CONFIG_HOME/rclone/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.

--dedupe-mode MODE

Mode to run dedupe command in. One of interactive, skip, first, newest, oldest, rename. The default is interactive. See the dedupe command for more information as to what these options mean.

--disable FEATURE,FEATURE,...

This disables a comma separated list of optional features. For example to disable server side move and server side copy use:

--disable move,copy

The features can be put in in any case.

To see a list of which features can be disabled use:

--disable help

See the overview features and optional features to get an idea of which feature does what.

This flag can be useful for debugging and in exceptional circumstances (eg Google Drive limiting the total volume of Server Side Copies to 100GB/day).

-n, --dry-run

Do a trial run with no permanent changes. Use this to see what rclone would do without actually doing it. Useful when setting up the sync command which deletes files in the destination.

--ignore-checksum

Normally rclone will check that the checksums of transferred files match, and give an error "corrupted on transfer" if they don't.

You can use this option to skip that check. You should only use it if you have had the "corrupted on transfer" error message and you are sure you might want to transfer potentially corrupted data.

--ignore-existing

Using this option will make rclone unconditionally skip all files that exist on the destination, no matter the content of these files.

While this isn't a generally recommended option, it can be useful in cases where your files change due to encryption. However, it cannot correct partial transfers in case a transfer was interrupted.

--ignore-size

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 modification time. If --checksum is set then it only checks the checksum.

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