Screen

Screen をzsh起動時に立ち上げる

.zshrc

if [ $TERM != "screen" ]

 then 

 exec screen -S main -xRR

fi 

back scroll

^T [ or Esc

then move command

 ^U, ^V, hjkl

split region

^T S

kill region 

^T X

move focus to another region

^T tab