usage: l [-lastUcuidnrzFLRxNPS] [-f format] [-D X:Y] [-F regexp] [file(s)]
usage: ff [-lastUcuidnrzFLxNPS] [-f format] [-D X:Y] regexp(s) [directory]
options: -l  long list (implicit if called 'll')
         -a  list also .* files
         -s  sort by size
         -t  sort by time
         -U  sort by nothing (original i-node order)
         -c  list status change time instead of modification time
         -u  list last access time instead of modification time
         -i  list also inode and hard links numbers
         -d  do not list contents of diretories
         -n  numerical output
         -r  reverse list
         -z  squeeze size field (slows down output)
         -L  show absolute real path (dereference symbolic links)
         -R  recursive into subdirs
         -x  do not cross filesystem boundaries with -R
         -m  list files matching perl ^regexp$
         -F  find files matching case insensitive perl regexp (name and link)
         -N  show only normal (regular) files
         -P  list plain file names (without '\' masking)
         -S  print statistics summary at end
	 -f  user defined format output, format characters are:
	     m=mode, u=user, g=group, s=size, l=hard links count, i=inode
	     n=name only, d=date, a=access+modification+inodechange dates
         -D  list only files newer than X and older than Y 
             XY format: NUMBER[smhd] (s=seconds, m=minutes, h=hours, d=days)
             XY format: YYYY-MM-DD (Y=year, M=month, D=day)
         -H  show help
         -E  show examples


l *.c          # list files ending with .c
l -la          # list all files in long format
l -Rrs         # list files recursive reverse sorted by size 
l -*f mus      # list files native names with format: mode+user+size
l -D 10d:      # list files newer than 10 days
ll             # list files long format (equal to: l -l)
lll            # list files extra long format (equal to: l -liS)
ff 'base.*jpg' # list files matching regexp base.*jpg
ff sda3 /dev   # list devices matching sda3 (equal to: l -RF sda3 /dev)

root@vms2:~# ff sda3 /dev
lRWX       - 2014-08-30 09:10 /dev/block/8:1 -> ../sda3
lRWX       - 2014-08-30 09:10 /dev/disk/by-path/pci-0000:01:00.0-fc-0x500307a80b401718:0x0000000000000000-part1 -> ../../sda3
lRWX       - 2014-08-30 09:10 /dev/disk/by-uuid/c6793265-22a2-45b4-81f9-aa33d8d0d3a5 -> ../../sda3
bRW- 008,001 2014-08-30 09:10 /dev/sda3