This is based on the requirements set by the Lab 1 PDF provided under the assignment page.
This program emulates the shell provided in UNIX systems, and runs all commands on a separate thread to prevent main thread failure.
This program features a while loop that runs until terminated by the user.
When a command is issued by the user the program scans for certain values that require special handling such as ">", "|", "exit", and the cd command.
Piped commands are separated into two separate commands, then using the C++ api, piped into eachother.
Since cd is not a program that can be executed, the cd command was created using chdir, and the same command separator the rest of the commands use.
That being said I know the PDF said not to create commands but I did not see another way to accomplish making the cd command work.
The users input string is turned into a char array, which is then either dispatched to a special handler(pipe), or handled by execvp(args[0], args)
The command to file method also runs the method for the user to see on top of writing it to a file via the use of the tee program.
Occasionally when executing certain combinations of commands they will not exit, and you must hit enter again to reset the shell.
This is an inconsistent error that is not replicable when repeating issues that caused it.