As we've explored recently, strace is a powerful tool for understanding how a program interacts with the operating system. But it's only for system calls. Learn how to use ltrace …
Tag: unix
Episode #623
Strace
Learn to use strace - a powerful microscope for peering into a program's interactions with the operating system.
Episode #621
lsof; or: what process is using my port?!
Have you ever gone to start a local development server, only to have it complain that the port is already taken? In this episode you'll learn about how to use …
Episode #500: Subprocesses Part 12: Fork and Exec
Learn the twin pillars at the root of the UNIX process-spawning architecture!
Episode #499: Subprocesses Part 11: Fork
If you're making subprocesses on a UNIX-like OS, you're using fork(). Learn all about using fork() from Ruby.
Episode #468: Line Endings
A little history lesson about computer text formats
Episode #457: Subprocesses Part 9: Exec
Learn Ruby's exec method by building a tool that starts project-specific Apache instances
Episode #426: Subprocesses Part 7: Soft Limits
Resource limits don't always have to be hard. Today we'll see how to put fuzzy handcuffs on a process.
Episode #425: Subprocesses Part 6: Limits
Sometimes child processes can get unruly. Today we'll learn how to impose some discipline, using resource limits.