Hello, World
#!/bin/sh
echo "Hello, World!"main.sh
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Shell Script (sh) 1.36.1Readymain.shLn 1, Col 1Spaces: 4UTF-8
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main.sh · output appears here
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The POSIX shell (sh) is a command-line interpreter and scripting language used to automate tasks, glue programs together, and control Unix-like systems. Shell scripts combine commands, variables, conditionals, loops, and pipelines to process text and manage files. Because sh adheres to the portable POSIX standard rather than bash-specific extensions, scripts written for it run consistently across a wide range of systems and minimal environments.
CompileBytes runs sh reported as version 3.2. Scripts execute top to bottom, with each line typically a command and its arguments. Core constructs include variable assignment without spaces around the equals sign, command substitution, test conditions with `[ ... ]`, and `for`/`while` loops. The online environment is ideal for practicing portable scripting, text processing with standard utilities, and control flow without needing terminal access to a local Unix machine.
main.sh is the entry point for each run.
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#!/bin/sh
echo "Hello, World!"#!/bin/sh
greet() {
echo "Hello, $1!"
}
name="CompileBytes"
greet "$name"#!/bin/sh
total=0
for i in 1 2 3 4 5; do
total=$((total + i))
done
if [ "$total" -gt 10 ]; then
echo "Sum is $total"
fi#!/bin/sh
printf 'Enter your name: '
read name
echo "Hi, $name!"#!/bin/sh
n=1
while [ "$n" -le 5 ]; do
echo "line $n"
n=$((n + 1))
done#!/bin/sh
fruit=apple
case "$fruit" in
apple) echo "It is an apple" ;;
banana) echo "It is a banana" ;;
*) echo "Unknown fruit" ;;
esac#!/bin/sh
count=$(printf 'a\nb\nc\n' | wc -l)
echo "Lines: $count"#!/bin/sh
echo "Script name: $0"
echo "Arg count: $#"
for arg in "$@"; do
echo "arg: $arg"
done#!/bin/sh
name=${1:-World}
if [ -z "$name" ]; then
echo "empty"
else
echo "Hello, $name!"
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Shell Script (sh) is one of 46 single-file compiler scratchpads. Each run submits only main.sh; local sibling-file imports are not enabled.
Linked-project languages (23): Node.js, TypeScript, Deno, Python, C, Go, Dart, Swift, Rust, Ruby, PHP, Java, Kotlin, C++, C#, Nim, Crystal, Haxe, Zig, Scala, D, Bun, Objective-C.
Single-file scratchpads (46): Matplotlib, NumPy, pandas, Haskell, Clojure, Perl, Lua, Tcl, jq, Raku, Elixir, Bash, Zsh, Nushell, R, Assembly (NASM), Julia, Octave, Groovy, PowerShell, Visual Basic .NET, Odin, Pascal, Lisp, Erlang, CoffeeScript, COBOL, BASIC, V, Racket, OCaml, Prolog, AWK, Emacs Lisp, Emojicode, Forth, F#, Fortran, Assembly (NASM64), Solidity, Mojo, Ada, WASM (WAT), Gleam, Shell Script (sh), Scheme.
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