use the necessary commands from the command line interface (cli) to answer the following questions: of the shells listed below, which is not available on the system? what percentage of space is used on /dev/sda1? which disk partition is the boot partition?



Answer :

Operating systems and software are controlled through a text-based interface known as the command line interface (CLI).

What is command line interface?

  • A command-line interface (CLI) is used by a command-line interpreter or command-line processor to take user commands in the form of lines of text. By doing so, it is possible to specify environment-specific parameters, call executables, and instruct them of the tasks they are to complete. In some circumstances, the invocation is dependent upon parameters set by the user or earlier executables. Such access was first given through computer terminals starting in the mid-1960s. This created an interactive setting that was not possible with punched cards or other types of input.
  • Today, graphical user interfaces and menu-driven interactions are relied upon by many users. A command line may be used instead of a graphical user interface for various programming and maintenance operations.

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