2. Write a C program named assignment2_yourname.c and submit the code in blackboard. The program takes as argument a new environment variable in the form var_name=value (e.g., SHELL=/bin/bash) and has...

Extracted text: 2. Write a C program named assignment2_yourname.c and submit the code in blackboard. The program takes as argument a new environment variable in the form var_name=value (e.g., SHELL=/bin/bash) and has to print out the following information: • Its PID and its parent process's PID (.n: e.g. My PID is 2554 My parent process PID is 2553 ####################### • Its original environment before setting the new variable (. e.g. My original environment is: TERM=xterm-256color [..] ####HHHHHHH############ • The updated environment list after setting the new environment variable e.g., My updated environment is: TERM=xterm-256color SHELL=/bin/bash [.] • The program has to handles the different errors • Usage error - check that the program has one argument of the form var=name and give a usage error if not (. • Check that the set of the environment variable is successful and return errExit if not succesful NOTE: You can build on /tlpi-dist/proc/modify_env.c and you can compile your new program the same way.