Situation: If I entered a copy command like
cp -rf /src/ /dsc/ then I am waiting several minutes for copy large directories. I forgot to put
-v flag to verbose an output, Can I do it during copying?
No you can't, but you could use the watch command to look at the destination directory to see how the process is progressing, eg.
I recommend to use Midnight Commander in case when you need to see a progress of files copying.
MC will display nice and informative progress dialog.