Bash 5.2.21

Online Bash Compiler & Editor

Name: myCompiler Bash
Author: myCompiler

myCompiler is a free online Bash compiler, editor and code runner that lets you write, run, and share Bash code directly in your browser. It works as your Bash playground, sandbox, fiddle, cloud compiler, and online REPL. No downloads, no installation needed. Just open the editor and start coding with syntax highlighting, autocomplete, and instant output.

Start coding in Bash How it works

27+ languages Used by 1M+ developers Free forever

main.sh

#!/bin/bash

echo "Hello from Bash!"

greeting="Hello, World"
echo "Uppercase: ${greeting^^}"
echo "Length: ${#greeting} characters"

a=10; b=3
echo "$a + $b = $((a + b))"
echo "$a / $b = $((a / b)) remainder $((a % b))"

Output

Hello from Bash! Uppercase: HELLO, WORLD Length: 12 characters 10 + 3 = 13 10 / 3 = 3 remainder 1

How to run Bash code online

Three steps to go from idea to running Bash code in this online playground. No account required.

Write your code

Open the Bash editor and start writing. The smart editor gives you syntax highlighting, autocomplete, and error detection as you type.

Click Run

Hit the Run button or press +Enter to run your Bash code on secure, sandboxed cloud servers.

See results

Output appears instantly in the integrated terminal. Errors and exceptions show up with clear, helpful messages.

Everything you need to code in Bash

A complete online Bash IDE and coding playground in your browser. Write, run, and share code without any setup.

Zero setup required

Start coding in seconds with this browser-based Bash interpreter. No downloads, no installations, no environment configuration. Open your browser, go to myCompiler, and start writing Bash code immediately.

Works on any device with a web browser. Desktop, laptop, tablet, phone, Chromebook. There is nothing to install and nothing to configure.

Feature-rich code editor

Write Bash with a professional-grade code editor built into your browser. Syntax highlighting colors your code for readability, making keywords, strings, and functions easy to distinguish at a glance.

Intelligent autocomplete suggests methods and properties as you type, and real-time error detection catches mistakes before you run your code.

Multi-file projects

Create and manage multiple files in a single project. Use the file sidebar to organize your code into modules, then import them across files just like in a desktop IDE.

Build modular applications with proper project structure. Each file is editable, and you can switch between them instantly.

Run code instantly

Click the Run button or press +Enter to execute your Bash code instantly. This online code runner displays output immediately in the integrated terminal panel. Your code runs on secure, sandboxed cloud servers and results appear in seconds.

Error messages and tracebacks are displayed clearly, making it easy to find and fix issues. The terminal supports ANSI colors for rich output formatting.

Ready to try it? Write and run your first Bash program in seconds.

Open Bash editor

Bash on myCompiler

myCompiler runs Bash 5.2.21, always up to date with the latest stable release. You get a full browser-based IDE with syntax highlighting, intelligent code completion, multi-file project support, a built-in terminal for real-time output, and standard input (stdin) for interactive programs. Write, compile, run, and debug Bash code on any device. Desktop, laptop, tablet, phone, Chromebook. Zero downloads, zero configuration, and no sign-up required. Save your programs with a unique URL and share them with anyone. You can also embed a working Bash editor on your own website.

Use this online Bash playground as a quick code executor for testing snippets, a coding sandbox for learning, or a cloud compiler for coding interview preparation. The editor includes dark mode for comfortable coding, keyboard shortcuts for faster workflows, and clear error messages with line numbers so you can debug quickly. Students use it for homework and practice. Teachers use it to share working examples. Developers use it to prototype ideas. myCompiler is beginner-friendly, fast, and completely free. It works in any modern web browser.

Start coding in Bash

Bash code examples

Common Bash patterns you can try in the online compiler. Each example is ready to run.

Hello World in Bash

main.sh

echo "Hello, World!"

Variables and Data Types in Bash

main.sh

NAME="Alice"
AGE=30
PI=3.14
echo "$NAME is $AGE years old"
echo "Pi is approximately $PI"

If-Else Conditionals in Bash

main.sh

X=10
if [ $X -gt 0 ]; then
    echo "Positive"
elif [ $X -eq 0 ]; then
    echo "Zero"
else
    echo "Negative"
fi

For and While Loops in Bash

main.sh

for i in 1 2 3 4 5; do
    echo "Count: $i"
done

fruits=("apple" "banana" "cherry")
for fruit in "${fruits[@]}"; do
    echo "$fruit"
done

Functions in Bash

main.sh

greet() {
    local name=$1
    local greeting=${2:-"Hello"}
    echo "$greeting, $name!"
}

greet "Alice"
greet "Bob" "Hi"

Arrays and Collections in Bash

main.sh

# Indexed array
fruits=("apple" "banana" "cherry")
fruits+=("date")
echo "${fruits[1]}"
echo "Count: ${#fruits[@]}"

# Associative array
declare -A person
person["name"]="Alice"
person["age"]=30
echo "${person["name"]}"

Data Structures in Bash

main.sh

# Bash uses functions to simulate structs
dog_bark() {
    local name=$1
    echo "$name says Woof!"
}

dog_new() {
    DOG_NAME=$1
    DOG_BREED=$2
}

dog_new "Rex" "Labrador"
dog_bark "$DOG_NAME"
echo "Breed: $DOG_BREED"

Error Handling in Bash

main.sh

#!/bin/bash
set -e

divide() {
    if [ "$2" -eq 0 ]; then
        echo "Error: Division by zero" >&2
        return 1
    fi
    echo $(( $1 / $2 ))
}

if result=$(divide 10 0 2>&1); then
    echo "Result: $result"
else
    echo "Caught: $result"
fi

File I/O in Bash

main.sh

# Write to file
echo "Hello, File!" > output.txt
echo "Second line" >> output.txt

# Read from file
while IFS= read -r line; do
    echo "Read: $line"
done < output.txt

# Check file exists
if [ -f output.txt ]; then
    echo "File size: $(wc -c < output.txt) bytes"
fi

Shell Scripting in Bash

main.sh

#!/bin/bash
# Process a list of numbers
numbers=(3 1 4 1 5 9 2 6 5 3)
sum=0
max=${numbers[0]}

for n in "${numbers[@]}"; do
    sum=$((sum + n))
    [ $n -gt $max ] && max=$n
done

echo "Sum: $sum"
echo "Max: $max"
echo "Count: ${#numbers[@]}"

Try these examples in the editor

How to take input in Bash online

myCompiler supports standard input (stdin) for Bash programs. Use Bash's standard input functions to read user input. Enter your input data in the stdin panel before running your program.

This works for both single-line and multi-line input. You can read strings and convert to numbers using the language's built-in I/O functions.

Try it yourself

main.sh stdin supported

#!/bin/bash

read name
read age

echo "Hello $name!"
echo "You'll be $((age + 1)) next year."

stdin

Alice
25

Output

Hello Alice!
You'll be 26 next year.

No setup, no sign-up. Start writing Bash code right now.

Start coding now

Getting started with Bash online

You can start writing and running Bash code right now without installing anything. Type your code, and click Run. This free Bash code runner executes your program instantly and displays the output in the terminal panel below the editor. Open the Bash online editor, type your code, and click Run.

If you're new to Bash, use this online Bash playground to start with the basics like variables, data types, conditionals, and loops. The code examples above cover all the fundamentals you need to get started. Each example can be copied into the sandbox and run immediately. No setup, no configuration.

As you progress, try creating multi-file projects, using libraries, and sharing your programs with others via URL. Sign up for a free account to save your work and build a personal library of programs. myCompiler works as a full online Bash IDE right in your browser.

Who uses myCompiler

Whether you're learning to code, preparing for interviews, or prototyping ideas, myCompiler is built for you.

Students & Learners

Practice exercises, complete homework assignments, and experiment with code without installing anything on school or personal computers.

Teachers & Educators

Share code examples with students via unique URLs. Embed the compiler in course materials so students can run examples directly in the browser.

Interview Candidates

Practice coding interview problems, test algorithms, and verify solutions quickly during preparation for technical interviews.

Professional Developers

Quickly prototype ideas, test code snippets, or try out a library without setting up a local environment. Great for quick experiments.

Content Creators & Bloggers

Embed interactive examples in blog posts, tutorials, and documentation so readers can run code without leaving the page.

Teams & Collaborators

Share code snippets with colleagues via URLs. Others can view, run, and fork your code to build on your work.

myCompiler vs. local IDE

Why use an online Bash compiler instead of installing one locally?

Feature	myCompiler	Local IDE
Setup time	Instant	Minutes to hours
Installation	None required	Bash + IDE required
Device support	Any browser	Desktop only
Sharing code	One-click URL	Manual (file, git, etc.)
Languages	27+ in one place	One at a time
Cost	Free forever	Free to $$$
Works on Chromebook	Yes	Limited

What is Bash?

Bash (Bourne-Again Shell) is a Unix shell and command language written by Brian Fox for the GNU Project and first released in 1989. It is the default shell on most Linux distributions and on macOS (until Catalina, where it was replaced by Zsh). Bash is both a command-line interpreter for interactive use and a scripting language for automating tasks.

Bash scripts are text files containing sequences of commands that the shell executes, line by line. They support variables, conditionals, loops, functions, pipes, and process substitution, giving you the full power of the Linux command-line ecosystem in a programmable form. Bash is indispensable for DevOps, system administration, and CI/CD automation.

What is Bash used for?

Bash is used for system administration and automation, backups, log rotation, user management, CI/CD pipelines in GitHub Actions, Jenkins, and GitLab CI, deployment scripts, build automation, data processing using tools like awk, sed, and grep, and server configuration. Any repetitive task on a Linux system can and should be automated with a Bash script.

Bash for beginners

Learning Bash is essential for anyone working in Linux, DevOps, or cloud infrastructure. It is the glue that connects Linux command-line tools into automated workflows. Bash scripts can seem cryptic at first, variable syntax, special characters, and quoting rules have subtleties, but the payoff is enormous. Use myCompiler's online Bash environment to learn shell scripting without needing a Linux machine, writing and testing scripts for real tasks like file processing and text manipulation.

Bash vs other languages

Compared to Python for scripting, Bash excels at orchestrating Linux commands and processes, while Python is better for complex logic, data structures, and portability across operating systems. Compared to PowerShell, Bash is the standard on Linux/macOS systems while PowerShell is the standard on Windows. Compared to Zsh, Bash is more universally available, making it the safer choice for scripts that must run on any Linux server.

Why use an online Bash compiler?

An online Bash environment, also called a Bash sandbox or shell runner, lets you write and run Bash scripts directly in your browser without a Linux machine. This is ideal for learning shell scripting, practicing text processing with awk and sed, testing regular expressions in Bash, and experimenting with command pipelines without the risk of affecting your local system.

myCompiler's online Bash environment runs on Linux with common utilities pre-installed including grep, sed, awk, sort, cut, find, curl, and more. Write multi-line scripts, provide stdin input, and save and share your scripts, all free.

Why is Bash so popular?

Bash's popularity is inseparable from Linux's dominance in servers, cloud infrastructure, and DevOps. Every Linux system ships with Bash, and every DevOps engineer, sysadmin, and backend developer encounters shell scripts regularly. The rise of Docker, Kubernetes, and cloud platforms has made Bash scripting even more relevant, Dockerfiles, CI/CD pipelines, and server bootstrap scripts are all written in shell. Bash knowledge is a universal skill in technical roles.

Bash career opportunities

Bash scripting skills are valued for DevOps engineer, site reliability engineer (SRE), system administrator, cloud engineer, and backend developer roles. In cloud and infrastructure roles, shell scripting is a baseline requirement. Bash expertise combined with Docker, Kubernetes, and CI/CD tools is one of the most in-demand skill sets in the infrastructure and platform engineering space.

Try Bash online Free · No sign-up needed

Keyboard shortcuts

Code faster with these keyboard shortcuts in the myCompiler editor.

Run code

+ Enter

Save program

+ S

Toggle comment

+ /

Indent line

Tab

Unindent line

Shift + Tab

Undo

+ Z

Select next occurrence

+ D

Find & replace

+ H

Embed the Bash compiler on your website

Add an interactive Bash compiler to your website, blog, or learning platform. Readers can write and run Bash code directly on your page without leaving it.

Perfect for technical tutorials, coding courses, documentation, and educational content. Save a program on myCompiler and use the embed link to add it to any webpage.

Embedded Bash compiler, editor and code runner

HTML

<iframe
src="https://www.mycompiler.io
    /embed/bash"
width="100%"
height="400"
frameborder="0">
</iframe>

Why developers choose myCompiler

A full-featured online IDE for Bash and 27+ other programming languages.

27+ Languages

Python, JavaScript, Java, C++, Rust, Go, TypeScript, C#, and many more. All compilers and interpreters in one place. Switch languages instantly.

Dark & Light Mode

Switch between light and dark themes with one click. Code comfortably in any lighting condition, day or night.

Mobile Friendly

Fully responsive editor optimized for phones, tablets, and Chromebooks. Code on any device with a web browser. No app download needed.

Save & Share Code

Save programs to your account, share via unique URLs, and let others view, fork, and run your code. Great for collaboration and code reviews.

Tags & Organization

Organize your saved programs with tags and find them quickly with search and filters. Build a personal library of code snippets and solutions.

No Account Required

Start writing and running code immediately. No sign-up, no email, no credit card. Create a free account later only if you want to save your work.

Explore more programming languages

myCompiler supports 27+ languages. Switch between them anytime. All free, all in one place.

View all 27+ languages

Frequently asked questions

Common questions about using the online Bash compiler, playground, and code runner.

Yes! myCompiler is completely free for all supported languages including Bash. There are no subscriptions, no premium tiers, and no hidden costs. Every feature is available at no charge.

myCompiler keeps its Bash environment up to date. You can see the exact version on the language details section of this page. We regularly update all language runtimes to their latest stable versions.

myCompiler provides a Linux-based Bash environment with common utilities like grep, sed, awk, sort, and more. You can write shell scripts, use pipes, redirections, and standard Bash features.

Simply open the Bash editor, write or paste your code, and click the Run button. Your code will be executed on our servers and the output will appear in the terminal panel within seconds.

Yes. Click Save to store your program. You will receive a unique URL that you can share with anyone. Recipients can view, fork, and run your code.

Yes. myCompiler supports multi-file projects. You can create, rename, and delete files in the sidebar. This lets you organize your Bash code just like in a local IDE.

Yes. All code runs in isolated containers on our servers. Each execution gets its own sandboxed environment that is destroyed after completion. Your code cannot affect other users or our infrastructure.

Yes. myCompiler has a responsive design optimized for phones and tablets. You can write and run Bash code on the go. The mobile interface uses tabs for switching between the editor, output, and file panels.

Yes. Click the Input tab in the bottom panel, type or paste your input data, then click Run. Your program will read from the input you provided.

Execution is fast. Code runs on our optimized cloud infrastructure and output typically appears within seconds. Execution time depends on the complexity of your program.

Yes. myCompiler provides an embed feature. You can copy an iframe snippet and paste it into your website, blog, or documentation. Visitors can edit and run code directly on your page.

myCompiler supports common editor shortcuts including Run (Ctrl/Cmd+Enter), Save (Ctrl/Cmd+S), Find (Ctrl/Cmd+F), and more. See the keyboard shortcuts section on this page for the full list.

No. myCompiler requires an internet connection because code is compiled and executed on our cloud servers. The editor itself loads in your browser, but running code requires connectivity.

myCompiler offers a fast, free, zero-setup environment with a modern code editor, multi-file support, dark mode, and instant sharing. It is ideal for learning, prototyping, interviews, and sharing code examples.

Yes. myCompiler is great for practicing algorithms and coding problems. You can write Bash code, provide custom input, and test your solutions instantly. Save your work and come back to it anytime.

Use print statements or console output to trace your program's behavior. myCompiler shows all standard output and error messages in the terminal panel. Error messages include line numbers to help you locate issues.

Ready to write Bash code?

Open the free Bash playground and start coding immediately. No downloads, no account required.

Start coding in Bash

Free · No sign-up required · Bash 5.2.21