'Why People Use Command-Line Interface (CLI)' commandline unix
The graphical user interface became the standard in the early 90s. It replaced the older, text-based interface. It made computers more accessible to everyone. So why do we still see people working on text-only terminals?The keyboard is the fastest and most precise input interface for computers. Each finger has a few keys within reach, and an average user can type two or three letters each second. Compare it with a mouse—it has only a few buttons, scroll, and an X-Y axis.
Because of those shortcomings, most graphical applications have keyboard shortcuts. To use computers efficiently, you need to learn a lot of them; it’s almost painful to see people copy and paste without using system shortcuts. Unfortunately, most GUIs are not very efficient in teaching the shortcuts—often, it’s on the user to search for the shortcuts for their most common actions.
On the other hand, in a CLI, everything is text-based. Some applications are run in one long command, such as git, grep, sed, etc. Other applications open a text-only interface where every operation is performed with keyboard shortcuts—for example, Vim, Emacs.A text-based program can accept any number of switches, and you need to know only about the few you use. Have you ever thought about how many parameters the web browser Chromium can take? More than 1000 .
The same feature-richness is not achievable in GUI-based applications. Less common features either clutter the screen or hide inside huge, multi-layer menus. What you get instead are:professional programs with scary interfaces, where it’s difficult to find even basic optionsCommand-line programs take text as an input and give text as an output. On the input/output level, all CLI programs are compatible.
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