l8.2b

<B>Digital的Unix操作系统VAX 4.2源码</B>

#print
Using the same scheme, print lines 2 and 3 of this file.
Then rewrite it and leave and type "ready".
#create Ref
:john adams
:thomas jefferson
:"file" 6 lines, 91 characters
#create file
george washington
john adams
thomas jefferson
james madison
james monroe
john quincy adams
#copyout
#pipe
ex +'set prompt noopt open' file
#user
#unpipe
#uncopyout
tail -3 .ocopy >X1
#cmp Ref X1 3
#log
#next
8.2c 3
8.1b 8