Move all files in the subfolder linux

as shown in figure

I want to move all .mkv files in the current folder and all subfolders to the subfolder. / new of the current folder.

I know that the copy command can be cp-r. / *. Mkv. / new The question is, how do you do the mv command?
solve.

my system is ubuntu 18.04

Jun.10,2022

if you are using the default bash environment, just:


mv ./*/*.mkv ./new
mv ./*.mkv ./new
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