b2

Command-line interface for Backblaze B2 cloud storage.

TLDR

Authorize account

$ b2 authorize-account [applicationKeyId] [applicationKey]

Upload file

$ b2 upload-file [bucketName] [localFile] [remoteFileName]

Download file

$ b2 download-file-by-name [bucketName] [fileName] [localFile]

List buckets

$ b2 list-buckets

Sync directory

$ b2 sync [localPath] b2://[bucketName]/[path]

b2 is the command-line interface for Backblaze B2 Cloud Storage. It provides tools for uploading, downloading, and managing files in B2 buckets, offering S3-compatible object storage at lower costs.
The tool supports large file uploads, versioning, and lifecycle rules.

PARAMETERS

authorize-account

Authenticate with application key

upload-file

Upload single file

download-file-by-name

Download file by name

list-buckets

List all buckets

list-file-names

List files in bucket

sync

Synchronize directories

delete-file-version

Delete specific file version

create-bucket

Create new bucket

--threads num

Number of parallel threads

--noProgress

Disable progress display

FEATURES

- Large file support (up to 10 TB)
- File versioning
- Server-side encryption
- Lifecycle rules
- S3-compatible API
- Incremental sync

WORKFLOW

$ # Authorize
b2 authorize-account <keyId> <key>

# Create bucket
b2 create-bucket myBucket allPrivate

# Upload directory
b2 sync /local/path b2://myBucket/remote/path

# Download
b2 sync b2://myBucket/path /local/path

CAVEATS

Requires application key with appropriate permissions. Downloads incur bandwidth costs. Deleted files may be retained (versioning). Class C transactions have fees. Sync operations can be slow on first run.

HISTORY

The B2 CLI was released by Backblaze around 2015 alongside the B2 Cloud Storage service as an affordable alternative to Amazon S3.

b2

Command-line interface for Backblaze B2 cloud storage.

TLDR

SYNOPSIS

DESCRIPTION