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Annotation of 42BSD/usr.lib/learn/editor/L10.2a, revision 1.1.1.1

1.1       root        1: #print
                      2: Often you want to refer to the last line
                      3: of a file, and you don't know how long it is.
                      4: There is a special address, "$" for this purpose.
                      5: "$" refers to the end of a file.  Thus
                      6:   $p
                      7: prints the last line of a file and
                      8:   1,$p
                      9: prints all of a file.
                     10: Here's another file.  Print all of it, and
                     11: then type the usual w, q, and ready.
                     12: Your commands should look like
                     13:   1,$p
                     14:   w
                     15:   q
                     16:   ready
                     17: #create Ref
                     18: 1,$p
                     19: w
                     20: q
                     21: #create file
                     22: New York Mets Managers
                     23:  Casey Stengel
                     24:  Wes Westrum
                     25:  Gil Hodges
                     26:  Yogi Berra
                     27:  Roy McMillan
                     28: #copyin
                     29: #pipe
                     30: ex +'set prompt noopt open' file
                     31: #user
                     32: #unpipe
                     33: #uncopyin
                     34: tail -3 .copy >X1
                     35: #cmp X1 Ref
                     36: #log
                     37: #next
                     38: 10.1b 10
                     39: 10.2b 5

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