Return to L6.1a CVS log

Up to [CSRG BSD Unix] / 42BSD / usr.lib / learn / morefiles

Annotation of 42BSD/usr.lib/learn/morefiles/L6.1a, revision 1.1.1.1

1.1       root        1: #print
                      2: Of course it is still possible to use files with "<" and ">"
                      3: to supply input to one end of a pipeline and to
                      4: collect the output from the other end.
                      5: In this directory are two files whose names begin
                      6: with "bio".  Collect the last 15 lines of these two files
                      7: (combined) in a file called "last", then type "ready".
                      8: #create bio1
                      9:    Roughly speaking, your eye is made of three balls, or layers,
                     10: fitted tightly one inside the other.  the tough white outermost
                     11: layer's function is to protect the others.  the middle layer gives
                     12: the front of your eye its brown, gray, or blue color.  The inside
                     13: of this layer is dark and full of tiny blood vessels.  The innermost
                     14: layer, called the retina, is made of very special nerve cells that
                     15: are sensitive to light and color.  A nerve cord connects the retina
                     16: of each eye to your brain.
                     17:    The front of your eye's two outer layers (the cornea) is clear,
                     18: or open, to let light enter.
                     19: #create bio2
                     20:    We do not know when life began on the earth, and it seems likely
                     21: that the answer to this question will remain forever hidden from us.
                     22: What we do know is that it was some 500 million years ago when the
                     23: plants and animals of early geologic history had reached a stage of
                     24: development where they produced hard parts capable of being preserved
                     25: as fossils.
                     26:    At this distant date there seemingly was no land life; all life
                     27: was in the sea.  Moreover, there were no vertebrates, or backboned
                     28: animals, living -- at least none of sufficient complexity that they
                     29: left hard structures to be preserved in the form of fossils.
                     30: #user
                     31: cat bio* | tail -15 >X1
                     32: #cmp X1 last
                     33: #log
                     34: #next
                     35: 6.1b 10

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.