List all files[-][--][++]

find ./ -name "*.mp3"    # this is casesensative
find ./ -iname "*.mp3"  # this one is case-insensative

find / -type d -print (to list only directories)
find / -type l -print (to list only soft links)
find / -type b -print (to list only bliock special files)
find / -type f -print (to list only regular files)'

List files with excluded extensions[-][--][++]

find ./ -not -iname *.mp3 -not -iname *.jpg -not -iname *.jpeg

like to find all junk thats not music or music related

find /mnt/seagate750/\(Tag\ Ready\)\ -\ QServer/ -type f -not -iname *.mp3 -not -iname *.jpg -not -iname *.jpeg -not -iname *.db -not -iname *.ini -not -iname *.txt -not -iname *.doc -not -iname *.gif -not -iname *.png -not -iname *.m3u|sort

Find all files by a user or group[-][--][++]

find / -user mreschke
find / -group admin
find / -uid 501

Find all files by user and change that user[-][--][++]

Find all files owned by a user, and change that user on all files to another user
http://snipplr.com/view/14971/change-ownership-of-all-files-owned-by-user1-to-user2/

sudo find /home -user mreschke -exec chown newuser {} \;