Status meanings :
---------------
! : not used
- : used without arg
+ : used with argument
* : used with optional argument
---------------
letter status description :
---------------
a ! 
b - terminal bell    			--bell
c + create archive 			--create
d + difference with filesystem 		--diff
e !
f - do not restore directory structure  --flat
g !
h - help usage				--help
i - path of the input pipe		--input
j !
k - do not deleted files drop between two backups --no-delete
l + list archive contents		--list
m + minimum size below which no compression will occure. --mincompr a default value is used. use -m 0 if you want to compress in any case.
n - do not allow overwriting		--no-overwrite
o - path of the output pipe		--output
p - pause before creating new slice	--pause
q !
r - do not overwrite more recent file	--recent
s + size of slice			--slice
t + test archive structure		--test
u - not consider user EA		--no-user-EA
v - verbose output			--verbose	
w - do not warn before overwriting	--no-warn
x + extract archive			--extract
y * bzip2 compression			--bzip2
z * gzip compression			--gzip
A + make a differential backup		--ref
B + filename taken as command-line extension --config
C + extract catalogue in separated file	--isolate
D - store excluded dir as empty dir	--empty-dir
E + shell command to launch with slices --execute
F + shell command to launch with slices of archive of reference   --execute-ref
G !
H !
I + include mask			--include
J + key for unscrambling the reference catalogue --key-ref
K + key for un/scrambling		--key
L - licence information
M !
N - do not read any configuration file ~/.darrc or /etc/darrc
O - ignore user Id and group Id		--ignore-owner
P + prune a directory tree		--prune
Q !
R + set the root directory		--root
S + size of the first slice		--first-slice
T - tree listing format			--tree-format
U - not consider root(or system) EA	--no-system-EA
V - version information			--version
W - warranty disclosure information (POSIX RESERVED, sorry)
X + exclude mask			--exclude
Y + included only filename for compression --include-compression
Z + excluded filename from compression  --exclude-compression 
  - don't save files with nodump flag set --nodump
