[command command] Little weird :))) but it's true #linux

command.md

command [OPTION] <command-name>

Options

-a or --all: prints all COMMAND found in PATH (including program, function and builtit), in the order which they're found.

-q or --query: return true if COMMAND existed, return false otherwise.

-v or -s or --search: prints the path to the program, not the function or builtit.