# write works:
echo очешуеть | 9p write acme/2/body

# read works:
9p read acme/2/body
...
очешуеть

# ls
9p ls acme
9p ls plumb

# read current windows:
9p read acme/index

# read default rules
9p read plumb/rules

// // //

# write window body with $winid == 2 into another window
Edit , < 9p read acme/2/body

# close window with $winid == 3
echo del | 9p write acme/3/ctl

// // //

touch /Users/ev/Desktop/wtf2.txt

echo opanki >> /Users/ev/Desktop/wtf2.txt 

echo 'name /Users/ev/Desktop/wtf2.txt' | 9p write acme/2/ctl
echo clean | 9p write acme/2/ctl
echo get | 9p write acme/2/ctl

// // //

echo 'текст в новом окне' | 9p write acme/new/body