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In Linux, if the script was executed by a regular user, the shell would attempt to execute the command rm -rf / as a regular user, and the command would fail. However, if the script was executed by the root user, then the command would likely succeed and the filesystem would be erased. It is recommended to use sudo on a per-command basis instead.
The Linux console (and Linux virtual consoles) are implemented by the VT (virtual terminal) subsystem of the Linux kernel, and do not rely on any user space software. [3] This is in contrast to a terminal emulator , which is a user space process that emulates a terminal, and is typically used in a graphical display environment.
VTE is a library (libvte) implementing a terminal emulator widget for GTK, and a minimal sample application (vte) using that. VTE is mainly used in gnome-terminal, but can also be used to embed a console/terminal in games, editors, IDEs, etc. The VTE library provides a terminal emulator widget VteTerminal for applications using the GTK toolkit.
x3270 is an open-source terminal emulator available for macOS, Linux and Windows xfce4-terminal: Character: Local X11, Wayland: Unix-based Default terminal for Xfce with drop-down support xterm: Character: Local X11, Wayland: Unix-based xterm is the standard terminal for X11; default terminal when X11.app starts on macOS: ZOC: Character
Many Linux distributions have the Bash implementation of the Unix shell. Apple macOS and some Linux distributions use zsh. Previously, macOS used tcsh and Bash. Embedded Linux (and other embedded Unix-like) devices often use the Ash implementation of the Unix shell, as part of Busybox.
The shell is both an interactive command language and a scripting language, and is used by the operating system to control the execution of the system using shell scripts. [2] Users typically interact with a Unix shell using a terminal emulator; however, direct operation via serial hardware connections or Secure Shell are
A terminal emulator, or terminal application, is a computer program that emulates a video terminal within some other display architecture. Though typically synonymous with a shell or text terminal , the term terminal covers all remote terminals, including graphical interfaces.
In the lower right we can see a terminal emulator running a Unix shell, in which the user can type commands as if they were sitting at a terminal. In computing, a shell is a computer program that exposes an operating system's services to a human user or other programs.