title: Cannot delete /usr/bin/php in macos
body: <p>I want to delete php in mac:</p>
  
  <pre><code>/private/etc/               sudo rm -rf php-fpm.conf.default php.ini php.ini.default
  /usr/bin/               sudo rm -rf php php-config phpdoc phpize
  /usr/include                sudo rm -rf php
  /usr/lib                sudo rm -rf php
  /usr/sbin               sudo rm -rf php-fpm
  /usr/share              sudo rm -rf php
  /usr/share/man/man1         sudo rm -rf php-config.1 php.1 phpize.1
  /usr/share/man/man8         sudo rm -rf php-fpm.8
  </code></pre>
  
  <p>when i run</p>
  
  <pre><code>sudo rm -rf php php-config phpdoc phpize
  </code></pre>
  
  <p>happen:</p>
  
  <pre><code>rm: php: Operation not permitted
  rm: php-config: Operation not permitted
  rm: phpize: Operation not permitted
  </code></pre>
  
  <p>Anyone can help me? thanks a lot!</p>