[unix-history] / usr / lib / learn / editor / L8.1a

#print
To move around, you can use simple arithmetic
when specifying what to print.  For example,
  3+1p
is the same as
  4p
as an editor command.  Now that's not very interesting;
but if the '.' current line pointer is line 3,
then using
  .+1p
instead of 4p is helpful.
For example, print the 3rd and 4th
lines of the familiar file using first "3p" to
get to line 3 and then ".+1p" to print the next line.
End as usual with w, q, and ready.
#create Ref
thomas jefferson
james madison
91
#create file
george washington
john adams
thomas jefferson
james madison
james monroe
john quincy adams
#copyout
#pipe
ed file
#user
#unpipe
#uncopyout
tail -3 .ocopy >X1
#cmp Ref X1
#log
#next
9.1a 10
8.1b 7
Commit	Line	Data
3eb5d546 C	1	#print
	2	To move around, you can use simple arithmetic
	3	when specifying what to print. For example,
	4	3+1p
	5	is the same as
	6	4p
	7	as an editor command. Now that's not very interesting;
	8	but if the '.' current line pointer is line 3,
	9	then using
	10	.+1p
	11	instead of 4p is helpful.
	12	For example, print the 3rd and 4th
	13	lines of the familiar file using first "3p" to
	14	get to line 3 and then ".+1p" to print the next line.
	15	End as usual with w, q, and ready.
	16	#create Ref
	17	thomas jefferson
	18	james madison
	19	91
	20	#create file
	21	george washington
	22	john adams
	23	thomas jefferson
	24	james madison
	25	james monroe
	26	john quincy adams
	27	#copyout
	28	#pipe
	29	ed file
	30	#user
	31	#unpipe
	32	#uncopyout
	33	tail -3 .ocopy >X1
	34	#cmp Ref X1
	35	#log
	36	#next
	37	9.1a 10
	38	8.1b 7