👶🏼 Minishell

A lightweight shell implementation in Go with pipe support and builtin commands.

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✅ Supported Features

Builtin Commands

Command	Description	Example
cd <path>	Change directory	cd /tmp, cd ~, cd
pwd	Print working directory	pwd
echo [args...]	Print arguments	echo hello world
ps	List running processes	ps
kill <pid>	Remove process by PID	kill 1

External Commands

• Full support for all system commands available in $PATH (ls, cat, grep, etc.)

Pipeline Support

• Execute multiple commands connected with pipes: echo test | cat | grep test
• Commands in pipeline run concurrently in separate goroutines

Signal Handling

• SIGINT - Cancel current command execution
• SIGTERM or Ctrl+D - Graceful shutdown

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▶️ Usage

• Clone the repository:

git clone https://github.com/alexey0b/minishell
cd minishell

• Build the project:

make build

• Run the shell:

./minishell

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📖 Examples

Basic Commands

$ ./minishell
> pwd
/home/user
> echo hello world
hello world
> cd /tmp
> pwd
/tmp

Pipeline Commands

> echo test | cat
test
> echo hello world | grep hello | cat
hello world

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🛠️ Technical Details

Requirements

• Go 1.25+
• Unix/Linux/macOS

Dependencies

• stretchr/testify - Testing framework
• uber-go/goleak - Goroutine leak detection

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