🌀 SimpleShell v1.5

An enhanced custom shell with variable support and I/O redirection.

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🧭 About

SimpleShell v1.5 is an enhanced version of our minimal shell interpreter.
Now featuring:
✅ Variable management (set/get commands)
✅ I/O redirection (> and < operators)
✅ Variable expansion in echo commands
Maintains all previous functionality while adding powerful new features.

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⚙️ Built-in Commands (Updated)

🔧 Command	📝 Description
help	List all available commands
pwd	Show current working directory
echo	Print arguments (supports $var expansion)
exit	Exit the shell
set	Set variable (name=value syntax)
get	Get variable value

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🆕 New Features

🔄 Variable Expansion

Use $var_name in echo commands to display variable values:

$ set name=Alice
$ echo Hello $name!
Hello Alice!

📤📥 I/O Redirection

Redirect output with > and input with <:

$ echo"File content"> output.txt # Write to file
$ cat < input.txt # Read from file

🛠️ Build & ▶️ Run

gcc shell.c -o shell
./shell

💡 Example Usage

$ help
Available commands:
exit Exit the shell
pwd Print current directory
echo Print arguments
help Show this help message
set Set variable (name=value)
get Get variable value
$ set message="Hello World"
$ get message
message=Hello World
$ echo$message> greeting.txt
$ cat < greeting.txt
Hello World
$ echo"Current directory:"&&pwd
Current directory: /home/user/simpleshell
$ invalid_cmd
Command not found: invalid_cmd
$ exit