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$ sort lakes.txt

sort takes the standard input and orders it alphabetically for the standard output. Here, the lakes in sort lakes.txt are listed in alphabetical order.

$ cat lakes.txt | sort > sorted-lakes.txt

Here, the command takes the standard output from cat lakes.txt and "pipes" it to sort. The standard output of sort is redirected to sorted-lakes.txt.

You can view the output data by typing cat on the file sorted-lakes.txt.

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