====== not documented option of admin commands ======
here we collect some not documented options sometime useful. The list actually is not ordered properly by topic just  "as it is" :-)

===== Library Manager =====
==== Delete orphaned volumes from volhist ====
  * Identify "old" owner:\\ ''select * from volhistory where volume_name='<NAME>' ''

  * Delete volhistory entry by //giving the name of the volume//:\\ ''del volhist type=remote volume=<NAME> tod=+0 force=yes''

  * remove all tapes with a certain patter from volhistory using a bash shell on the libman' config folder,\\ e.g. remove all LTO5 tapes on a LibMan called ''lm101'':<code>
  for i in $(grep "Volume Name" volhist.dat | grep "L5" | cut -f 2 -d '"')
  do 
    echo "lm101: del volhist type=remote volume="$i" tod=+0 force=yes"
  done
  lm101: del volhist type=remote volume=HU2194L5 tod=+0 force=yes
  lm101: del volhist type=remote volume=HU2195L5 tod=+0 force=yes
  lm101: del volhist type=remote volume=HU2135L5 tod=+0 force=yes
  lm101: del volhist type=remote volume=HU2138L5 tod=+0 force=yes
</code>