Which of the following command can you execute to count the number of lines in a file? A. lc B. wc – l C. cl D. count E. None of the above

The correct answer is B. wc – l.

The wc command is a utility for counting the number of lines, words, and characters in a file. The -l option tells wc to count the number of lines.

The other options are not valid commands.

• lc is not a valid command.
• cl is not a valid command.
• count is not a valid command for counting the number of lines in a file. It is a valid command for counting the number of occurrences of a string in a file.

To count the number of lines in a file, you can use the following command:

wc -l file

This command will print the number of lines in the file file.