HackerRank Cut #2 problem solution

In this HackerRank Cut #2 problem solution, we need to display the 2nd and 7th characters from each line of text.

Input Format

A text file with N lines of ASCII text only.

Constraints

1 <= N <= 100

Output Format

The output should contain N lines. Each line should contain just two characters at the 2nd and the 7th position of the corresponding input line.

Objective

In this challenge, we practice using the cut command to get and print characters from a file.

Problem solution.

while read line
do
    echo ${line} | cut -c 2,7
done

Second solution.

cut -c2,7

Third solution.

#!/bin/bash

rm -rf file.txt
while read string
do
  echo $string >> file.txt
done
cut -c2,7 file.txt