“dd” shows its progress

Problem: “dd” is a useful tool on linux. E.g. you can copy a disk image or wipe a disk, etc. But dd doesn’t show you any progress indicator, and you don’t know how long you have to wait until it has finished.

Solution:   send signal USR1 to the dd process and it will show you how much data it has already transferred at what speed

# dd if=/dev/zero of=/dev/sdc
other terminal # killall -USR1 dd
53768289+0 records in
53768289+0 records out
27529363968 bytes (28 GB) copied, 5025.8 s, 5.5 MB/s
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