An owl's eyes are placed at the front of the head and have a field overlap of 50â70%, giving it better binocular vision than diurnal birds of prey (overlap 30â50%).
PowerShell-Computer Definition. A comprehensive command line interface and scripting language for Windows. Introduced in 2006, PowerShell is a major upgrade from the Windows command line, which uses DOS commands (see command line).
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.