You learned about regular expression this past week. Now I would like you to put this to work on Unix.

Here are some things I would like done:

(1) Using find and grep, find all files ending in .html on the web site. 
    Return the name of any file containing the words "and", "speech", 
    and a number on at least one line.

(2) Repeat (1) with perl. Compare the clock time it takes to execute the command.

(3) Using perl, grep our research experiments directory tree for any experiment
    on TIDigits that gave a word error rate less than 1.0%.

(4) Find every function in the IFC that takes at least one floating point
    argument and uses a variable named sum within the method.

(5) Write a simple perl program to locate all words within the Switchboard lexicon
    that contain at least three vowels.

This assignment is due by 8 AM on 09/06.

-Joe