Abstract

The fourth cut problem from HackerRank.

Cut 4#

Cut #4 | HackerRank

Problem#

Display the first four characters from each line of text.

Input Format#

A text file with lines of ASCII text only.

Constraints#

  • \(1 \le N \le 100\)

(\(N\) is the number of lines of text in the input file)

Output Format#

The output should contain \(N\) lines. Each line should contain just the first four characters of the corresponding input line.

Sample Input#

Hello
World
how are you

Sample Output#

Hell
Worl
how

Solution#

cut-4.sh#
#!/usr/bin/env bash

# shellcheck disable=SC2162
while read line_txt; do
    echo "${line_txt}" | cut -c -4
done