src/Command.php
public function fs($value = null)
    {
        if (null === $value) {
            return $this->fs;
        }
        if (is_string($value))
            $value = new Filesystem($value);
        $this->fs = $value;
        foreach ($this->commands as $name => $command) {
            $command->fs = $value;
        }
        return $this;
    }
public function fs($value = null)
    {
        if (null === $value) {
            return $this->fs;
        }
        if (is_string($value))
            $value = new Filesystem($value);
        $this->fs = $value;
        foreach ($this->commands as $name => $command) {
            $command->fs = $value;
        }
        return $this;
    }
public function fs ( $ value = null ) { if ( null === $ value ) { return $ this -> fs ; } if ( is_string ( $ value ) ) $ value = new Filesystem ( $ value ) ; $ this -> fs = $ value ; foreach ( $ this -> commands as $ name => $ command ) { $ command -> fs = $ value ; } return $ this ; }
fs getter and setter.

@param  Tarsana\IO\Filesystem|string
@return mixed
fs getter and setter .