4.3BSD-UWisc/lib/learn/editor/L6.2b

#print
Same thing again, but this time print the
fifth line in the file.  Then type 'w', 'q',
and "ready".
#create Ref
:james monroe
#create file
george washington
john adams
thomas jefferson
james madison
james monroe
john quincy adams
#print file
#copyout
#pipe
ex +'set prompt noopt open' file
#user
#unpipe
#uncopyout
grep monroe .ocopy >X2
#cmp Ref X2
#log
#next
7.1a 10