title: Change file time (touch)
body: <p>I would like to be able to change a file's modification date for use in a web application. For the time being I am testing this directly on the command line. Works fine on my mac, but when I do this on a linux server get error.</p>
  
  <p>Command:
  /bin/touch -m -t 200906041200 /foo/bar/file.whatever</p>
  
  <p>Error:
  /bin/touch: setting times of `/foo/bar/file.whatever': Operation not permitted</p>
  
  <p>The file in question is 777.</p>