Part I

Write a C program called executebash.c$.$ It forks a child process to execute a bash script

named mybash. This mybash program prints on the screen

EXAM! EXAM! EXAM!

Then the parent process prints on the screen

STUDY! STUDY! STUDY!

Part II

Write a C program to execute multiple Unix commands in parallel.

$$ The number of Unix commands is not fixed.

$$ There is no communication among the Unix commands.

$$ The Unix commands are given as command line arguments.

$$ For simplicity, you can assume that each Unix command has exactly one

argument except that the last one can have either no argument or one argument.

For example,

$>>>>>$ miniminishell cat openfile.c ls $$l ps

includes three Unix commands: cat with one argument openfile.c$,$ ls with one argument $$

l$,$ and ps with no argument.

For each Unix command, use a separate process to execute it$.$ You need to print out each

process id