Limit the transfer rate and size of data over a pipe

cat /dev/urandom | pv -L 3m | dd bs=1M count=100 iflag=fullblock > /dev/null
This example will close the pipe after transferring 100MB at a speed of 3MB per second.

By: bugmenot
2012-07-29 00:42:16

What Others Think

'pv' is the 'pipe viewer' written by Andrew Wood ( and not the 'phase vocoder' fromt the WAON project included with older Debian and Fedora repositories. For file transfers over TCP/IP, I prefer to use 'rsync' with '--bwlimit'
Mozai · 515 weeks and 3 days ago
pv is more generic than rsync and easier to use.
bugmenot · 514 weeks and 2 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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