<s>
fdupes	B-Device
is	O
a	O
program	B-Application
written	O
by	O
Adrián	O
López	O
to	O
scan	O
directories	B-Application
for	O
duplicate	O
files	B-Operating_System
,	O
with	O
options	O
to	O
list	O
,	O
delete	O
or	O
replace	O
the	O
files	B-Operating_System
with	O
hardlinks	O
pointing	O
to	O
the	O
duplicate	O
.	O
</s>
<s>
It	O
first	O
compares	O
file	O
sizes	O
,	O
partial	O
MD5	B-Algorithm
signatures	I-Algorithm
,	O
full	O
MD5	B-Algorithm
signatures	I-Algorithm
,	O
and	O
then	O
performs	O
a	O
byte-by-byte	O
comparison	O
for	O
verification	O
.	O
</s>
<s>
fdupes	B-Device
is	O
written	O
in	O
C	B-Language
and	O
is	O
released	O
under	O
the	B-License
MIT	I-License
License	I-License
.	O
</s>
