Environment variables

Description: Learn about env vars, the most common ones, and how to work with them in Linux.

Skill level: beginner

Tags: env vars linux

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File descriptors

Description: Learn about file descriptors, the three standard ones, and what tools you can use to work with them.

Skill level: intermediate

Tags: file descriptors linux

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Pipes

Description: Learn how pipes work and how to connect commands using them.

Skill level: beginner

Tags: linux pipes

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Shell redirection

Description: Learn how to redirect input and output when running a program from the shell.

Skill level: beginner

Tags: linux shell redirection

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Signals

Description: Learn about signals, the most common ones, and how to send them in Linux.

Skill level: intermediate

Tags: linux signals

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