Guides

List of available guides
Name Description
Environment variables Learn about env vars, the most common ones, and how to work with them in Linux.
File descriptors Learn about file descriptors, the three standard ones, and what tools you can use to work with them.
Pipes Learn how pipes work and how to connect commands using them.
Shell redirection Learn how to redirect input and output when running a program from the shell.
Signals Learn about signals, the most common ones, and how to send them in Linux.
Signals in Docker Learn how signals work in Docker containers.
System calls and strace Learn how to inspect system calls using strace.