Abstract

The first tr problem from HackerRank.

tr 1

Problem

In this challenge, we practice using the tr command because it is a useful translation tool in Linux.

In a given fragment of text, replace all parentheses () with box brackets [].

Input Format

A block of ASCII text.

Output Format

Output the text with all parentheses () replaced with box brackets [].

Sample Input

int i=(int)5.8
(23 + 5)*2

Sample Output

int i=[int]5.8
[23 + 5]*2

Solution

tr-1.sh

#!/usr/bin/env bash

# shellcheck disable=SC2162
tr "[=(=]" "[=[=]" | tr "[=)=]" "[=]=]" -