Compiled Learning Objectives

NodeJS

• Identify and explain why someone may use NodeJS

Writing a NodeJS program

• Write a zero-dependencies NodeJS program

Using dependencies from npm

• Define a library

Installing dependencies with npm

• Use a dependency in a NodeJS program

Operating systems

• Define an operating system.
• Describe what an kernel is.
• Explain what a process is.
• List what processes are created when running ls | grep '[A-Z]'.
• Explain what a system call (syscall) is.
• Give three examples of syscalls.

Workshop: Process Spelunking

• Find the PID of a process, using ps.
• Define a file descriptor.
• List a process’s open file descriptors, using lsof.
• Define a system call.
• List the system calls performed by a process, using strace
• Interpret the output of strace.
• Interpret return values of syscalls by referencing man 2.