I would like to know how to use the yank with register.
If I have two texts in defferent directory. ( a.txt in /home/me/Desktop b.txt in /home/)
I want to copy a part of a.txt to b.txt. however it is not a few lines( more than 100 )
I have heard that I can yank into a register but it seem that it cannot paste it in defferent directory. So may someone give me some idea to do copy and past?