"While the rest of the computing world points and clicks in a
scary little world of icons, all alike, we in the world of Unix
still have at our fingertips a good old-fashioned CLI, or Command
Line Interface. One reason why the command line has remained so
pervasive in Unix environments is that the implementation, the Unix
shell in its various incarnations, is very good indeed.
"Yet people often learn the few commands they absolutely
must--just what they need to, say, read mail, start their editor,
and print documents--and leave it at that. Indeed, nowadays, with
the spread of sophisticated GUI environments in the Linux and Unix
world, many users never so much as see a shell prompt..."
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