Questions

1. For shell scripters, what is the most important reason for following the POSIX standard?
   1. To ensure that scripts will only run on Linux operating systems.
   2. To ensure that scripts can run on a wide variety of Linux, Unix, and Unix-like operating systems.
   3. To ensure that all operating systems are running bash.
   4. To ensure that scripts can use the advanced features of bash.
2. Which of the following is a dynamic code checker?
   1. checkbashisms
   2. shellcheck
   3. shall
   4. will
3. Which of the following statements about sh is true?
   1. On every operating system, sh is always the Bourne shell.
   2. On every operating system, sh is a symbolic link that points to bash.
   3. sh represents a different shell on different operating systems.
4. You want to solve a math problem, and assign its value to a variable. Which of the following constructs...