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Que. What is the function of following UNIX command?

WC – l < a >b&
a. It runs the word count program to count the number of lines in its input, a, writing the result to b, as a foreground process.
b. It runs the word count program to count the number of lines in its input, a, writing the result to b, but does it in the background.
c. It counts the errors during the execution of a process, a, and puts the result in process b.
d. It copies the ‘ l ’ numbers of lines of program from file, a, and stores in file b.
Answer:It runs the word count program to count the number of lines in its input, a, writing the result to b, but does it in the background.
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