Anaphylaxis is a severe, potentially life-threatening allergic reaction that can develop rapidly. It is also known as anaphylactic shock. Signs of anaphylaxis include: itchy skin or a raised, red skin rash.
DEFINITION of 'Shell Corporation'. A corporation without active business operations or significant assets. Shell corporations are not necessarily illegal or illegitimate, as they often serve an important for potential startups.
In Unix, the shell is a program that interprets commands and acts as an intermediary between the user and the inner workings of the operating system.o Unix, the shell is just another program. For this reason, any program can be designated a login shell in /etc/shells. For example, some Emacs users pride themselves on never needing a traditional shell prompt.