Examples of this include the Microsoft Windows, DOS Shell, and Mouse Systems PowerPanel. Alternatives to the command-line interface include text-based user interface menus (for example, IBM AIX SMIT), keyboard shortcuts, and various desktop metaphors centered on the pointer (usually controlled with a mouse). However, some programming and maintenance tasks may not have a graphical user interface and use a command line. Today, many users rely upon graphical user interfaces and menu-driven interactions. This includes programming environments and utility programs. Many software systems implement command-line interfaces for control and operation. Programs with command-line interfaces are generally easier to automate via scripting. Operating system command-line interfaces are often implemented with command-line interpreters or command-line processors. This provided an interactive environment not available with punched cards or other input methods. Such access was first provided by computer terminals starting in the mid-1960s. Screenshot of a sample Bash session in GNOME Terminal 3, Fedora 15 Screenshot of Windows PowerShell 1.0, running on Windows VistaĪ command-line interface ( CLI) is a means of interacting with a device or computer program with commands from a user or client, and responses from the device or program, in the form of lines of text.
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