15-213/18-243 Introduction to Computer Systems: FAQ

Table of Contents

Generic Questions

  • How can I get help in 15-213?

    We're glad you asked! You can always email us at 15-213-staff@cs.cmu.edu or stop by office hours.

  • When I try to run an executable file included in a lab handout, I get a "Permission denied" error. What should I do?

    The executable bit is not set. Run "chmod +x <filename>" to set the executable bit. This problem may occur if you extract the handout tarball on a Windows machine. Always extract the handout on a Linux machine.

  • How do I extract a tarball on a Linux machine?

    Run "tar -xvf <filename>" to extract it.

  • Do I need to sign up for an exam slot?

    No, just show up.

  • Will there still be class on Tuesday and Wednesday during the midterm?


  • Will there be office hours during exam days?

    No, but you can always come find a TA in the exam room if you're desperate for a TA.

  • Will there be recitation on Thursday?

    No; happy 4th of July!