title: sort logfile by timestamp on linux command line
body: <p>I have a logfile with entries like:</p>
  
  <pre><code>...    
  freeswitch.log:2011-09-08 12:21:07.282236 [ERR] ftdm_queue.c:136 Failed to enqueue obj 0x7f2cda3525c0 in queue 0x7f2ce8005990, no more room! windex == rindex == 58!
  freeswitch.log:2011-08-08 13:21:07.514261 [ERR] ftdm_queue.c:136 Failed to enqueue obj 0x7f2cda354460 in queue 0x7f2ce8005990, no more room! windex == rindex == 58!
  freeswitch.log:2011-06-04 16:21:08.998227 [ERR] ftdm_queue.c:136 Failed to enqueue obj 0x7f2cda356300 in queue 0x7f2ce8005990, no more room! windex == rindex == 58! 
  freeswitch.log:2011-09-08 12:21:10.374238 [ERR] ftdm_queue.c:136 Failed to enqueue obj 0x7f2cda3581a0 in queue 0x7f2ce8005990, no more room! windex == rindex == 58!
  ...
  </code></pre>
  
  <p>How can I sort the file with linux command line tools by the timestamp in each row decending?</p>