title: How to close file opened via file readable in Tcl
body: <p>When the input file is corrupt, the input file is held open by my code and I am unable to delete it. To delete it, I might close the command line which ran my code so the file is closed automatically then I am able to delete.</p>
  
  <p>But what is the command to close a file opened via <a href="https://wiki.tcl-lang.org/page/file+readable" rel="nofollow noreferrer">file readable?</a></p>