1.1.28 • Public • Published


A command-line interface (CLI) for mobiletto storage.

Mobiletto supports connections to Amazon S3, Backblaze B2, and local filesystems.

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Support and Funding

I would be sincerely grateful for any contribution via Patreon

Installation and usage

You can install and run mobiletto-cli via npm or directly from source.

npm package

# install globally with npm
npm i -g mobiletto-cli

# install globally with yarn
yarn global add mobiletto-cli

# Now the 'mo' command should be on your PATH
mo -h
mo --help

From source

To run from source, you'll need nodejs v16+ and yarn

# Clone source and install dependencies
git clone
cd mobiletto-cli
yarn install

# Use the 'mo' command from the git repo
./mo -h
./mo --help


All mobiletto storage is accessed through a connection.

Mobiletto currently supports connections to the local filesystem storage and Amazon S3 buckets.

Connections are specified by a JSON object that looks like this:

    "name": "name-of-connection",
    "type": "s3",            # one of "s3", "b2", or "local"
    "opts": {
        "readOnly": false,   # optional, default false
        "cacheSize": 100,    # optional, 
        ... other type-specific options ...
    "encryption": {          # optional, default is no encryption
        "key": "enc-key",    # required if encryption is enabled
        "iv": "enc-IV",      # optional, derived from key if omitted
        "algo": "enc-algo"   # optional, default is aes-256-cbc

For full details on all the options and their values and meanings, see the mobiletto docs.

Create a connection

To create a new connection, we need one of these JSON objects.

We can create one interactively, or supply one via a file or JSON literal:

# Create JSON via interactive prompts
mo connect 

# Create via interactive prompts, but force name `my-conn` to be used
mo connect -c my-conn 
mo connect --create my-conn     # long-form option

# Create from JSON config
mo connect my-conn.json

# Create from JSON config, but force name `renamed` to be used
mo connect -c renamed my-conn.json

# Create from literal JSON object
mo connect '{
    "name": "my-conn",
    "type": "local",
    "key": "/tmp/basedir"

List connections

List available connections:

mo connect -l
mo connect --list

Dump connection JSON config

Show the full JSON config for a connection. WARNING this will print keys and secrets to stdout.

mo connect -d my-conn
mo connect --dump my-conn

# pretty-print JSON
mo connect --verbose --dump my-conn
mo connect -vd my-conn

Remove a connection

Remove a single connection:

mo connect -r my-conn
mo connect --remove my-conn

Remove all connections

Remove ALL connections:

mo connect -R
mo connect --remove-all

Working with storage

Once you have created some connections, use the ls, cp, rm, meta and mirror operations to work with them.

Every file path that you provide to a command must be prefixed with the name of the connection it refers to. In the examples below, we assume two connections exist named conn1 and conn2

List files

The output of a list command is a series of JSON objects, one per line, representing the files found. These objects will have a name and type, and possibly other fields.

mo ls conn1/some/path

List files recursively:

mo ls -r conn1/some/path
mo ls --recursive conn1/some/path

Encrypted storage note: Recursive listing is not yet supported for encrypted connections. You can only list one directory of files at a time.

List files verbosely (pretty-print JSON):

mo ls -v conn1/some/path
mo ls --verbose conn1/some/path

List files recursively and verbosely:

mo ls -vr conn1/some/path
mo ls --verbose --recursive conn1/some/path

View help for ls command, describes all options:

mo ls -h
mo ls --help

Write a file to stdout

The cat command will print a file to stdout:

mo cat conn1/some/file                         # print to terminal
mo cat conn1/some/file | some-other-command    # use in command pipeline

In the true UNIX spirit (yet certainly not the practice!) mobiletto's cat command takes no options other than -h/--help to display helpful information.

Copy files

Copy a single file from one mobiletto to another:

mo cp conn1/some/path/to/file conn2/some/dest/path/

Copy a single file from one mobiletto to another, renaming it at the destination:

mo cp conn1/some/path/to/file conn2/some/dest/path/file2

Recursively copy a directory:

mo cp -r conn1/some/directory conn2/some/dest/

View help for cp command, describes all options:

mo cp -h
mo cp --help

Note: File copying is not very fast, because it currently requires an intermediary temp file.

Delete files

Delete a single file:

mo rm conn1/some/file.txt

Delete a single file and don't complain about any errors:

mo rm -f conn1/some/file.txt
mo rm --force conn1/some/file.txt

Delete a directory:

mo rm -r conn1/some/directory
mo rm --recursive conn1/some/directory

Delete a directory and don't complain about any errors:

mo rm -rf conn1/some/directory
mo rm --recursive --force conn1/some/directory

View metadata

It's often useful to know the metadata for a file, without downloading the whole file.

Mobiletto is able to report the file size and last modified time, in addition to name and type.

To view metadata:

mo meta conn1/some/file.txt

Mirror directories

Mirroring is more than a special case of cp, it is a separate mobiletto command that wraps the copy operation; it continues even when errors occur, and counts the number of successes and errors.

To mirror everything from conn1 into conn2:

mo mirror conn1 conn2

To mirror a subdirectory:

mo mirror conn1/some/subdir conn2

To mirror a subdirectory into another subdirectory:

mo mirror conn1/some/subdir conn2/another/dir


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