For Claude Code, you pay $20 for pro, then npm -g install @anthropic-ai/claude-code. Then invoke claude on your terminal.
It is a different thing, in a sense, because you can install command line tools that far surpass the Claude client’s tooling. Pandoc, curl, imagemagick, etc. Without these tools, CC will often write ad hoc scripts. The tools you have installed (provided you tell it) will always be better and more efficient.