<aside> ⚠️ Focus of the tutorial:

Word splitting and shell scripting.

</aside>

⁉️ What?

• Shells are command interpreters → execute commands
• Command-line shells are programmable, powerful tools
• bash is the most popular used shell by Unix-like systems (other ones are dash, zsh, etc.) Dash is the one we will be using in this course
• The course will focus on the core features provided by all shells (POSIX-standard)

🗒️ Rules:

• Variables
• Commands
• Double quotes
• Single quotes
• Here documents
• Arithmetic
• Word splitting
• Filename expansion (Globbing)
• Pipelines
• I/O redirection
• if statements and while / for loops