Assume that the expected form of a file name is name. digits. ext. file names conforming to this form are, for example: experiment.34.dat, subjects.241.fig, simulation.0001.log. write a script that will repeatedly prompt the user to enter a file name until they enter a string conforming to the valid file name form. the string is in the valid form if it consists of a name (letters only), followed by a dot, followed by digits only, followed by a second dot, followed by a three-character extension consisting of letters only. the script should inform the user each time they enter an invalid file name, and the user once they have entered a valid file name. here is an example of what executing the script might look like: enter a file name: book. txt

What is the process in which the software development team compiles information to determine the final product.

Which of the following had the greatest influence on opening the internet to the generly public

When you type the pwd command, you notice that your current location on the linux filesystem is the /usr/local directory. answer the following questions, assuming that your current directory is /usr/local for each question. a. which command could you use to change to the /usr directory using an absolute pathname? b. which command could you use to change to the /usr directory using a relative pathname? c. which command could you use to change to the /usr/local/share/info directory using an absolute pathname? d. which command could you use to change to the /usr/local/share/info directory using a relative pathname? e. which command could you use to change to the /etc directory using an absolute pathname? f. which command could you use to change to the /etc directory using a relative pathname?