A terminal is a text based interface that allows users to interact with a computer through commands. It provides the environment in which a shell runs. Terminals were originally physical devices but now exist as software applications on modern systems. Developers use terminals to navigate folders, run scripts, access remote servers, and manage development tools. Terminal usage is essential in backend work, cloud computing, and DevOps. It provides fine grained control that graphical interfaces may not offer.
how it works
When a user opens a terminal, it launches a shell that interprets commands. The terminal displays the input and output streams between the user and the shell. Terminals also support keyboard shortcuts, environment variables, and customization of colors or prompts. Remote terminals are often established through protocols like SSH. Many build tools, package managers, and deployment scripts assume the presence of a terminal environment. Mastery of the terminal greatly improves development efficiency.