195. Tenth Line

195. Tenth Line (Easy)

Given a text file file.txt, print just the 10th line of the file.

Example:

Assume that file.txt has the following content:

Line 1
Line 2
Line 3
Line 4
Line 5
Line 6
Line 7
Line 8
Line 9
Line 10

Your script should output the tenth line, which is:

Line 10

Note:
1. If the file contains less than 10 lines, what should you output?
2. There's at least three different solutions. Try to explore all possibilities.

Companies:
Google

Solution 1.

# OJ: https://leetcode.com/problems/tenth-line/
# Author: github.com/lzl124631x
[ $(cat file.txt | wc -l) -ge 10 ] && head -10 file.txt | tail -1