Skip to content
Programmingoneonone
Programmingoneonone
  • Home
  • CS Subjects
    • Internet of Things (IoT)
    • Digital Communication
    • Human Values
  • Programming Tutorials
    • C Programming
    • Data structures and Algorithms
    • 100+ Java Programs
    • 100+ C Programs
  • HackerRank Solutions
    • HackerRank Algorithms Solutions
    • HackerRank C problems solutions
    • HackerRank C++ problems solutions
    • HackerRank Java problems solutions
    • HackerRank Python problems solutions
Programmingoneonone

HackerRank Tr Command #3 problem solution

YASH PAL, 31 July 2024

In this HackerRank ‘Tr’ Command #3 problem solution The ‘tr’ command is a useful translation utility in linux.

‘e’ being transformed to ‘E’

$ echo “Hello” | tr “e” “E”

HEllo

Spaces being transformed to hyphens

$ echo “Hello how are you” | tr ” ” ‘-‘

Hello-how-are-you

Digits (numerals) being deleted

$ echo “Hello how are you 1234” | tr -d [0-9]

Hello how are you 

In a given fragment of text, replace all sequences of multiple spaces with just one space.

Input Format

A block of ASCII text.

Output Format

Replace all sequences of multiple spaces with just one space.

HackerRank 'Tr' Command #3 problem solution

Problem solution.

tr -s ' '

Second solution.

tr -s "[:space:]"

Third solution.

while true 
do 
    read -s input 
    echo  $input | tr -s [:space:] ' '
    echo ''
    if [[ -z "$input" ]]
    then 
        break
    fi 
done

coding problems solutions linux shell

Post navigation

Previous post
Next post

Pages

  • About US
  • Contact US
  • Privacy Policy

Programing Practice

  • C Programs
  • java Programs

HackerRank Solutions

  • C
  • C++
  • Java
  • Python
  • Algorithm

Other

  • Leetcode Solutions
  • Interview Preparation

Programming Tutorials

  • DSA
  • C

CS Subjects

  • Digital Communication
  • Human Values
  • Internet Of Things
  • YouTube
  • LinkedIn
  • Facebook
  • Pinterest
  • Instagram
©2025 Programmingoneonone | WordPress Theme by SuperbThemes