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Annotation of 42BSD/usr.lib/learn/C/L33.1a, revision 1.1.1.1

1.1       root        1: #print
                      2: Write a main program which counts the number of command-line arguments
                      3: it has which begin with the letter 'b'.  Print the
                      4: result in decimal.  Compile and test it as usual.
                      5: Then type "ready".
                      6: #user
                      7: a.out abc bcd efg rpq b bbvd  >xxx
                      8: grep 3 xxx >/dev/null
                      9: #succeed
                     10: /*  a possible solution */
                     11: main(argc, argv)
                     12: char *argv[];
                     13: {
                     14:        int i, k;
                     15: 
                     16:        for(i=k=0; i<argc; i++)
                     17:                if (argv[i][0] == 'b')
                     18:                        k++;
                     19:        printf("%d\n", k);
                     20: }
                     21: #log
                     22: #next
                     23: 37.1a 10

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