"Leetcode~shell": Tenth Line

Tenth line:https://leetcode.com/problems/tenth-line/

Test Instructions: prints the 10th line of a file.

The problem involves several points:

1. How do I read a file?

2. How do I find line 10th?

3. What if the file is empty or less than 10 lines?

Solution:

1.shell a way to read a file:

While read Linedo     echo $linedone < filename

2. Use the Count method to find the 10th line.

3. If the file is empty or less than 10 lines, the output is empty.

Code:

Cnt=1while Read Linedo    if [$ (cnt)] = = [ten]; then        echo $line    fi let    cnt+=1done < file.txt if [$cnt- LT Ten];then    echo "fi

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

"Leetcode~shell": Tenth Line