In Linux: 1. Describe the command egrep with an example. 2. Write test commands for the following a. to see whether /etc/shadow is writeable b. to see whether /usr/bin/passwd is an executable 3. Describe the egrep meta characters  ^ (caret) and $ well.

Select the one option that best completes this sentence: Exceptions are ... Select one: O a. a mechanism for dealing with regular outcomes of calculations in your programme. Ob. a mechanism for handling exceptional events while your programme is running to handle them gracefully. Ос. a mechanism for detecting extreme values in your data. d. a mechanism that can be used instead of an if-statement to provide more sophisticated handling of conditional code execution.

write  a program that displays a list of Students + Classes +schdeule of classes + Grades   in Linux      in the end, show what codes you use to write the program

solve: