Полезная информация

Learning Perl

Learning PerlSearch this book
Previous: 17.5 Variable-Length ( Text) DatabasesChapter 17
User Database Manipulation
Next: 18. Converting Other Languages to Perl

17.6 Exercises

See Appendix A, Exercise Answers for answers.

  1. Create a program to open the sendmail alias database and print out all the entries.

  2. Create two programs: one that reads the data from <>, splits it into words, and updates a DBM file noting the number of occurrences of each word; and another program to open the DBM file and display the results sorted by descending count. Run the first program on a few files and see if the second program picks up the proper counts.

Previous: 17.5 Variable-Length ( Text) DatabasesLearning PerlNext: 18. Converting Other Languages to Perl
17.5 Variable-Length ( Text) DatabasesBook Index18. Converting Other Languages to Perl