Question: Solution 1- wc l `ls` 2- wc l `ls` | sort bn 3- wc l `ls` | sort bn | tail n 2 4- wc

Solution

1- wc l `ls`

2- wc l `ls` | sort bn

3- wc l `ls` | sort bn | tail n 2

4- wc -l `ls` | sort bn | tail n 2 | head n 1

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