I am a newer to cakephp .I config the cakephp shell as the cakephp handbook says,when I run the HelloShell with the command cake Hello ,I got the error information as follo
Error: Shell class HelloShell could not be found appear because: typo mistake or run command at wrong directory.
Solution:
1. Setup path for php.exe, cake.exe
2. For example, my Cake website root is:
C:\tools\xampp1.8.3\htdocs\cakephp-2.5.5
Create new file in folder C:\tools\xampp1.8.3\htdocs\cakephp-2.5.5\app\Console\Command\HelloShell.php with content:
class HelloShell extends AppShell {
public function main() {
$this->out('Hello world.');
}
}
3. Open cmd, type:
cd /d C:\tools\xampp1.8.3\htdocs\cakephp-2.5.5\app
cake hello
We use hello in command line to call HelloShell class, because "Convention over configuration".

Reference: http://book.cakephp.org/2.0/en/console-and-shells.html#creating-a-shell