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Specifically, the term ''command'' is used in Imperative Computer Language s. These languages are called this, because Statements in these languages are usually written in a manner similar to the Imperative Mood used in many Natural Language s. If one views a statement in an Imperative Language as being like a sentence in a natural language, then a command is generally like a verb in such a language. Many programs allow specially formatted arguments, known as flags, which modify the default behaviour of the command, while further s. EXAMPLES Here are some commands given to a Unix or Unix-like operating system: Cd /home/pete This cd command changes the user's place in the Directory Tree from their current position to the directory /home/pete. Echo "hello" This echo command prints the text hello out to the Standard Output stream, which, in this case, will just print the text out on the screen Ls -ltr /bin This ls command lists files in the directory /bin, ''also'' listing all the files ''in long format'' (the flag -l), ''sorted by time'' (the flag -t), and ''in reverse order'' (the flag -r). SEE ALSO |
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