l12.2b

<B>Digital的Unix操作系统VAX 4.2源码</B>

#print
Now use the editor to copy file "first"
to file "second".
Then type "ready".
#create Ref
Bell Telephone Laboratories
 600 Mountain Avenue
  Murray Hill, New Jersey 07974
#create first
Bell Telephone Laboratories
 600 Mountain Avenue
  Murray Hill, New Jersey 07974
#user
#cmp Ref second
#log
#next
12.2c 5