Basic File Handling

Use the find command to locate all files which start with an "a" and end in a ".conf" which exist somewhere in /usr/share. Save this list to a file '/home/caine/alist'. Make sure that the first parameter of find is "/usr/share". Run the command as user "caine" and do not worry about any permission error messages.

Use the find command to locate all FILES in /usr/share which have the permissions "rwxr-xr-x". This is test "-perm 755", but you need another test to ensure you are talking about files and not things like directories. Save this list to /home/caine/blist. Make sure that the first parameter of find is "/usr/share". Run the command as user "caine" and ignore any permission error messages.

Use the find command to locate all directories in /usr/share which have the permissions "rwxr-xr-x". Pipe this list to wc and count the number of DIRECTORIES (so not files).
Number of directories:

Again using the find command find out how many files in /usr/share are in group caine. Use the "-group caine" test for this, and make sure you are dealing with only files.
Number of files:

Make a directory called /home/caine/thecopy. Write a find command which copies all the files into /home/caine/thecopy which are owned by caine (use -user) in /usr/share, and which are smaller than 10240 bytes, and which have a filename starting with "a".

Using a combination of grep, regular expressions, and wc via a pipe count how many words in the /usr/share/dict/words dictionary starts with "anti" and ends with an "n".
Number of words:

Using grep and regular expressions, create a file /home/caine/aword which contains all the words which start with "tele" from /usr/share/dict/words, and which are exactly 7 characters long.

How many words have the string "ra" in them twice in /usr/share/dict/words?
Number of words:

How many words are in /usr/share/dict/words which contains "ice" then an "s" or a "d" without a space in between (i.e. ices or diced). Use square brackets to form a set in your regular expression.
Number of words:

Use grep on words to find a word that contains each of the vowels in alphabetical (i.e first an A, then an E, etc) order in /usr/share/dict/words. How many such words are there? (you may include words with extra vowels such as adventitious. A vowel is one of A,E,I,O,U.
Number of words:

The word interlinking includes the same two characters (e.g. "in") which appear three times. The word "priestessess" also contains the same two characters repeated three time (e.g. "es").

How many words can you find which contain any two characters repeated three times, like the examples "interlinking" and "priestessess". Use /usr/share/dict/words as your list of possible words and grep to find the answer.
Number of words:

Note. Do a case sensitive match, so do not use "-i".

Challenge Question: This is a tricky question. Just give it 10 minutes before moving onto the next question!

How many words are 5 character palindromes? A palindrome is a word spelled the same way forward and backwards, such as "sagas". Use /usr/share/dict/words. Hint: Use multiple groups and backreferences.
Number of words: