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OpenBSD’s dd(1) natively supports printing status with SIGINFO. If you run “stty status ^T”, then during dd you can press Ctrl-T to get an informational message

by anjbe 5y ago

OpenBSD’s dd(1) natively supports printing status with SIGINFO. If you run “stty status ^T”, then during dd you can press Ctrl-T to get an informational message including progress and rate of transfer. $ dd if=/dev/zero of=/dev/null load: 0.27 cmd: dd 2358 [running] 0.37u 0.65s 1% 99k 528102+0 records in 528101+0 records out 270387712 bytes transferred in 1.051 secs (257262549 bytes/sec) load: 0.27 cmd: dd 2358 [running] 1.00u 1.93s 10% 109k 1467936+0 records in 1467935+0 records out 751582720 bytes transferred in 2.930 secs (256426100 bytes/sec) load: 0.32 cmd: dd 2358 [running] 1.68u 3.12s 19% 109k 2424899+0 records in 2424899+0 records out 1241548288 bytes transferred in 4.834 secs (256784572 bytes/sec)

saagarjha 5y ago
This is one of the niceties that macOS happens to inherit from the BSDs.
hddqsb 5y ago
GNU dd has a similar feature, it prints the status on SIGUSR1. There is no keyboard shortcut though, so you'd have to open another terminal and run `pkill -USR1 -x dd`.