Show progress during dd copy

Ok, this is actually a copy and paste post thus credit is due where credit is deserved: Linux Commando.

The quick-and-dirty trick: open a new terminal and enter:

$ kill -INFO <PID of dd process>

NOTE: do not use USR1 on Mac OS X!

The “output” will be printed on the console where dd is actually running:

$ dd if=/path/to/file of=/dev/sdb1 bs=1M
0+14 records in
0+14 records out
204 bytes (204 B) copied, 24.92 seconds, 0.0 kB/s

[131028 update]: in fact $ sudo pkill -INFO -n -x dd seems to be a much quicker, and easy to remember, one-liner.

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