Networking:

Assume there is file dictionary.txt that has the following words in its content. Write the unix commands to do the following.

a. Print all of the lines within the /opt/dictionary.txt file containing a 5 letter word beginning with u and ending with y . Send the standard output to a file named /opt/regex/pattern01.txt .

b. Print all of the lines within the /opt/dictionary.txt file containing an 11 letter word beginning with either u or w and ending in ly . Send the standard output to a file named /opt/regex/pattern02.txt .

c. Print all of the lines within the /opt/dictionary.txt file that contain the text bello , mello or yello . Send the standard output to a file named /opt/regex/pattern03.txt .