title: What does :: (double colon) mean in DOS batch files?
body: <p>I found this program <a href="https://web.archive.org/web/20140225075758/http://baiyunmanor.com/blog/work/get-current-date-time-in-dos-batch-file/" rel="noreferrer">web.archive.org: http://baiyunmanor.com/blog/work/get-current-date-time-in-dos-batch-file/</a></p>
  <pre><code>::::::::::::::::::::::::::::::::::::::::::::::::::::::::
  ::
  :: This uses Windows Scripting Host to set variables
  :: to the current date/time/day/day_number
  :: for Win9x/ME/NT/W2K/XP etc
  :: Thanks go to Todd Vargo for his scripting
  ::::::::::::::::::::::::::::::::::::::::::::::::::::::::
  @echo off
  set TmpFile=”%temp%.\tmp.vbs”
  echo&gt; %TmpFile% n=Now
  echo&gt;&gt;%TmpFile% With WScript
  echo&gt;&gt;%TmpFile% .Echo “set year=” + CStr(Year(n))
  echo&gt;&gt;%TmpFile% .Echo “set yr=” + Right(Year(n),2)
  ...
  cscript //nologo “%temp%.\tmp.vbs” &gt; “%temp%.\tmp.bat”
  call “%temp%.\tmp.bat”
  ...
  echo date F [ddmmyy] [%day%%month%%yr%]
  :: datetime.bat
  </code></pre>
  <p>But I don't know what does the line</p>
  <pre><code>:: datetime.bat
  </code></pre>
  <p>at the end mean?</p>