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 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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