Welcome! I've wrapped some initial activities into the ntr0 and pct1 projects, that I'd like you to perform by the given deadlines (by 11:59:59pm / 23:59:59 on posted day).
If you've never used a UNIX system before, I'd recommend reading UNIX for the Beginning Mage; it is short, and likely one of the best reads you'll ever have.
Get familiar with how to log onto Lab46, and once on:
change to your src/ subdirectory
create/edit .c files (such as hello.c), and learn how to save/exit
compile the C program (.c file(s)) into an executable with gcc
execute the compiled C program (the executable) by specifying a path: ./program_name