l18.2d

<B>Digital的Unix操作系统VAX 4.2源码</B>

#print
What command will insert lines before the second line from the
end of the file?  Type "answer XXX" where XXX is that command.
#copyin
#user
#uncopyin
#match $-2i
#match $-3a
#log
#next
18.2e 5