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duplicity — Create incremental, compressed, encrypted and versioned backups. Can also upload the backups to a va

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the duplicity command: Create incremental, compressed, encrypted and versioned backups. Can also upload the backups to a variety of backend services. It is worth mentioning that depending on the version, some options may not be available (e.g. --gio in 2.0.0). More information: <https://duplicity.gitlab.io/stable/duplicity.1.html#name>.

Solution

duplicity — Create incremental, compressed, encrypted and versioned backups. Can also upload the backups to a variety of backend services. It is worth mentioning that depending on the version, some options may not be available (e.g. --gio in 2.0.0). More information: <https://duplicity.gitlab.io/stable/duplicity.1.html#name>.

Backup a directory via FTPS to a remote machine, encrypting it with a password:

FTP_PASSWORD={{ftp_login_password}} PASSPHRASE={{encryption_password}} duplicity {{path/to/source_directory}} {{ftps://user@hostname/path/to/target_directory}}/

Backup a directory to Amazon S3, doing a full backup every month:

duplicity --full-if-older-than {{1M}} s3://{{bucket_name[/prefix]}}

Delete versions older than 1 year from a backup stored on a WebDAV share:

FTP_PASSWORD={{webdav_login_password}} duplicity remove-older-than {{1Y}} --force {{webdav[s]://user@hostname[:port]/some_directory}}

List the available backups:

duplicity collection-status "file://{{absolute/path/to/backup_directory}}"

List the files in a backup stored on a remote machine, via SSH:

duplicity list-current-files {{[-t|--time]}} {{YYYY-MM-DD}} scp://{{user@hostname}}/{{path/to/backup_directory}}

Restore a subdirectory from a GnuPG-encrypted local backup to a given location:

PASSPHRASE={{gpg_key_password}} duplicity restore --encrypt-key {{gpg_key_id}} --path-to-restore {{path/to/restore_directory}} file://{{absolute/path/to/backup_directory}} {{path/to/directory_to_restore_to}}

Code Snippets

Backup a directory via FTPS to a remote machine, encrypting it with a password

FTP_PASSWORD={{ftp_login_password}} PASSPHRASE={{encryption_password}} duplicity {{path/to/source_directory}} {{ftps://user@hostname/path/to/target_directory}}/

Backup a directory to Amazon S3, doing a full backup every month

duplicity --full-if-older-than {{1M}} s3://{{bucket_name[/prefix]}}

Delete versions older than 1 year from a backup stored on a WebDAV share

FTP_PASSWORD={{webdav_login_password}} duplicity remove-older-than {{1Y}} --force {{webdav[s]://user@hostname[:port]/some_directory}}

List the available backups

duplicity collection-status "file://{{absolute/path/to/backup_directory}}"

List the files in a backup stored on a remote machine, via SSH

duplicity list-current-files {{[-t|--time]}} {{YYYY-MM-DD}} scp://{{user@hostname}}/{{path/to/backup_directory}}

Context

tldr-pages: common/duplicity

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