Простенько..

Welcome to the Haiku shell.

~> axel
Usage: axel [options] url1 [url2] [url…]
-s x Specify maximum speed (bytes per second)
-n x Specify maximum number of connections
-o f Specify local output file
-S [x] Search for mirrors and download from x servers
-H x Add header string
-U x Set user agent
-N Just don't use any proxy server
-q Leave stdout alone
-v More status information
-a Alternate progress indicator
-h This information
-V Version information

Visit http://axel.alioth.debian.org/ to report bugs
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