Bookstore and BookSearch are the two entities for the given scenario.
Explanation:
- For the given Book.com virtual store, there can be two entities like Bookstore and BookSearch.
- Bookstore can have all the details of the books in the virtual store. hence the attributes can be
- Bookstore attributes: bookname, Authorname, Publisher, Publishedyear, Agegroup, category.
- BookSearch entity can be used to search the books in the virtual store.
- Booksearch attributes: bookname, category, bookid, authorname.
Answer:
a. grep 'b[au]nk$' myLine
Explanation:
grep is a command used for searching a specified pattern in a given text.
Our goal is to match the character sequence - bank or bunk at the end of line in a given line referenced by myLine.
The regular expression for the specified match criterion is:
b[au]nk$
The second character can be either a or u.
$ indicates match at end of line.
So the overall grep command is :
grep 'b[au]nk$' myLine
Answer: Provided in the explanation section
Explanation:
The question says :
You are working on a documentation file userNotes.txt with some members of your software development team. Just before the file needs to be submitted, you manager tells you that a company standard requires that one blank space be left between the end-of-sentence period (.) and the start of the next sentence. (This rule does not affect sentences at the very end of a line.) For example, this is OK: Turn the knob. Push the "on" button. This is not: Turn the knob. Push the "on" button. Asking around among your team members, you discover that some of them have already typed their sentences in the approved manner, but others have inserted two or even more blanks between sentences. You need to fix this fast, and the first thing you want to do is to find out how bad the problem is. What command would you give to list all lines of userNotes.txt that contain sentence endings with two or more blanks before the start of the next sentence?
Solution:
Here, our fundamental aim is to look for the content which is having single space between different sentences. As it sentences finishing with . Going before with single and various spaces we have to channel and match just e the sentences which are finishing with ". "
For this we use order called "GREP" in Unix. "GREP " represents worldwide quest for standard articulation. This order is utilized inquiry and print the lines that are coordinating with determined string or an example. The example or indicated string that we have to look through we call it as customary articulation.
Syntax of GREP:
GREP [OPTIONS] PATTERN [FILE_NAME]
For our solution please follow the command
GREP "*\•\s$" userNotes.txt
Now it will display a all the lines having . Followed by single space.
The answer is the Quick Access Toolbar. However, it is not only for saving files or undoing your work. Containing a set of commands that are independent, this toolbar is actually customizable wherein you could change these icons to the ones you really need and frequently use. By tweaking the settings, you can even add commands to the Quick Access Toolbar that are not in the ribbon (like New, Open and Print).
Answer:
The answer is: Operations.
Explanation:
A database operation accesses to information of a relational database. In this case, Brittany has creates the database operation that select employee information of her company and the database has returned a result set. The SQL statement to perform operations on a database are:
