Watch the progress of 'dd'
while true; do kill -USR1 $pid && sleep 1 && clear; done
The important thing to grasp here isn't the filename or location of your input or output, or even the block size for that matter, but the fact that you can keep an eye on 'dd' as it's running to see where you are at during its execution.
6 Alternatives + Submit Alt
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This version was mentioned in the comments. Credits go to flatcap.
10pv -tpreb /dev/urandom | dd of=file.img -
Only slightly different than previous commands. The benefit is that your "watch" should die when the dd command has completed. (Of course this would depend on /proc being available)
2dd if=/dev/urandom of=file.img bs=4KB& pid=$!; while [[ -d /proc/$pid ]]; do kill -USR1 $pid && sleep 1 && clear; done -
Pressing ctrl-t will display the progress Show Sample Output
2ctrl-t -
The previously-posted one-liner didn't work for me for whatever reason, so I ended up doing this instead.
1dd if=/dev/urandom of=file.img bs=4KB& sleep 1 && pid=`pidof dd`; while [[ -d /proc/$pid ]]; do kill -USR1 $pid && sleep 10 && clear; done -
run this in another terminal, were xxxx is the process ID of the running dd process. the progress will report on the original terminal that you ran dd on
1kill -SIGUSR1 xxxx
What do you think?
Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?
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pv /dev/urandom | dd of=file.img bs=4KB count=1234This will display a progress bar for fixed-size input, or just a throughput speed for unlimited things like urandom.function ddp() { dd "$@" & pid=$! && while true; do kill -USR1 $pid && sleep 1 && clear; done ;}watch -n1 "kill -USR1 $pid"instead of the sleep and clear in a for loop.