---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# aria2c

> Fast download utility.
> Supports HTTP(S), FTP, SFTP, BitTorrent, and Metalink.
> More information: <https://aria2.github.io>.

- Download a specific URI to a file:

`aria2c "{{url}}"`

- Download a file from a URI with a specific output name:

`aria2c --out {{path/to/file}} "{{url}}"`

- Download multiple different files in parallel:

`aria2c --force-sequential {{false}} "{{url1 url2 ...}}"`

- Download the same file from different mirrors and verify the checksum of the downloaded file:

`aria2c --checksum {{sha-256}}={{hash}} {{"url1" "url2" ...}}`

- Download the URIs listed in a file with a specific number of parallel downloads:

`aria2c --input-file {{path/to/file}} --max-concurrent-downloads {{number_of_downloads}}`

- Download with multiple connections:

`aria2c --split {{number_of_connections}} "{{url}}"`

- FTP download with username and password:

`aria2c --ftp-user {{username}} --ftp-passwd {{password}} "{{url}}"`

- Limit download speed in bytes/s:

`aria2c --max-download-limit {{speed}} "{{url}}"`
