The issue you're encountering is likely due to the global Composer bin directory not being added to your system's PATH. Here are the steps to resolve this:

1. Find the Composer global bin directory:

   composer global config bin-dir --absolute
   # Output: /home/your-username/.config/composer/vendor/bin

2. Edit the shell configuration file:

   nano ~/.bashrc

3. Add the directory to the PATH:

   export PATH="$PATH:/home/your-username/.config/composer/vendor/bin"

4. Apply the changes:

   source ~/.bashrc

5. Verify the installation:

   laravel new my-application