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Annotation of 43BSD/usr.lib/learn/morefiles/L2.1a, revision 1.1.1.1

1.1       root        1: #print
                      2: Most of the programs we have studied so far produce their
                      3: output on the terminal -- examples are "ls", "spell", "grep",
                      4: "date", "who", and so on.  (Of course, some do not, like
                      5: "mv", "cp", and "rm".)  In any case, it is sometimes useful
                      6: to be able to capture the output of a program in a file,
                      7: so it can be used in some later processing.  This is very easy.
                      8: For example, to get the current date and time in a file called
                      9: "now", you need only type
                     10: 
                     11:    date >now
                     12: 
                     13: The symbol ">" tells the command interpreter that output
                     14: is to go into the file whose name follows.  If the file already
                     15: exists, its old contents will be clobbered, so use discretion.
                     16: 
                     17: Your task is to make a list of the files in this directory
                     18: in the file "foo".
                     19: When you have finished, type "ready".
                     20: #create X1
                     21: #create junk
                     22: #create glop
                     23: #create junk1
                     24: asdfadfaf
                     25: #create junk2
                     26: qerqerqrq
                     27: #user
                     28: ls >X1
                     29: #cmp X1 foo
                     30: #log
                     31: #next
                     32: 2.1b 10

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