If you want to filter the results, combine history via Pipe with the command line program grep (see search options) and a keyword.

Use the command history without options and arguments. You also have the option to view the complete list, numbered in the terminal. The history can be searched using keywords with the key combination +. This function serves as entry assistance, and allows you to look through the list of previous commands using the arrow keys and press ENTER again to confirm. In Bash, the last 500 commands entered in the command line are saved in the history. Use the help command to see a list of all integrated shell commands (built-in commands).Ĭall help in combination with a shell command to retrieve a short description of the demand in question. Instead of this, you can use the key combination +. The command line directive exit end the current session and closes the terminal. Instead of using this command, you can also clear the terminal with the key combination +. Older entries remain in the scrollback buffer. You’ll receive a blank terminal with a prompt. Use the command line directive clear to clear the screen content. the Bourne again shell, Bash) specified in the settings, and accepts input at the prompt. These were replaced on modern computers by terminal emulators – programs that provide users with a graphical window for interacting with the shell.Īs soon as you access the terminal of your operating system, is starts the standard shell (i.e. At the beginning of the computer age, independent devices, or so-called hardcopy terminals (printer or screen plus keyboard), were used.

In addition, each shell has its own programming language which makes it possible to write shell scripts – for example, to link program calls and facilitate administrative tasks.Įach shell runs in a terminal. It includes a command line interpreter that accepts user input via the keyboard, evaluates them, starts programs (if necessary), and returns the output in the form of a text entry to the user. Shell is a program that functions as an interface between system and user.

All of the settings that you set via the graphical user interface (GUI) can also be made in the form of command line directives via the so-called shell. Like most modern operating systems, Linux has two available interfaces for user input.

Linux serial terminal program