Leetcode 195 Tenth Line

Posted 2022-03-22 cs-wlj

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.

Q.describe:use bash to print the tenth line of file.txt which is provide by the question  setter.

Solution:

awk ‘NR == 10‘ file.txt
/*

awk [-F  field-separator]  ‘commands‘  input-file(s) 

*/
Detail describe of awk in bash,please click in:
https://www.cyberciti.biz/faq/bash-scripting-using-awk/

Comment: this is my first blog article,if there are something wrong in the article,please point out,thanks.