If you are asked to critique a presentation, give specific details about a few key areas that can be improved.
Answer the following statement true (T) or false (F)
True
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would add /opt/bin to PATH only if that pathname is not already in PATH. Be sure your solution works even if the shell variable starts out empty. Also make sure you check the list elements carefully. If /usr/opt/bin is in PATH but /opt/bin is not, the example just given should still add /opt/bin to PATH. (Hint: You might find this exercise easier to complete if you first write a function locate_field that tells you whether a string is an element in the value of a variable.)
Lists are commonly stored in environment variables by putting a colon (:) between each of the list elements. (The value of the PATH variable is an example.) You can add an element to such a list by catenating the new element to the front of the list, as in PATH=/opt/bin:$PATH If the element you add is already in the list, you now have two copies of it in the list. Write a shell function named addenv that takes two arguments: (1) the name of a shell variable and (2) a string to prepend to the list that is the value of the shell variable only if that string is not already an element of the list. For example, the call addenv PATH /opt/bin
Which of the following is NOT among the items of information that a CVE reference reports?
A. attack signature B. name of the vulnerability C. description of vulnerability D. reference in other databases
Legal protection for literary and artistic works is a(n) ________
Fill in the blank(s) with correct word
AC Case 3-1As a project for his technology design class, Miles was asked to put all the staff information into the school database. He is building a form to enter the name, email address, and schedule of each staff member. Miles wanted to merge several of the cells in the form. After selecting the first cell he wanted to merge, he will hold down the ____ key before selecting the other cells.
A. Alt B. Home C. Shift D. Tab