<s>
e2fsprogs	B-Application
(	O
sometimes	O
called	O
the	O
e2fs	B-Application
programs	O
)	O
is	O
a	O
set	O
of	O
utilities	O
for	O
maintaining	O
the	O
ext2	B-Application
,	O
ext3	B-Application
and	O
ext4	B-Application
file	B-Application
systems	I-Application
.	O
</s>
<s>
Since	O
those	O
file	B-Application
systems	I-Application
are	O
often	O
the	O
default	O
for	O
Linux	B-Application
distributions	I-Application
,	O
it	O
is	O
commonly	O
considered	O
to	O
be	O
essential	O
software	O
.	O
</s>
<s>
Included	O
with	O
e2fsprogs	B-Application
,	O
ordered	O
by	O
ASCIIbetical	O
order	O
,	O
are	O
:	O
</s>
<s>
resize2fs	B-Application
which	O
can	O
expand	O
and	O
shrink	O
ext2	B-Application
,	O
ext3	B-Application
and	O
ext4	B-Application
file	B-Application
systems	I-Application
.	O
</s>
<s>
Despite	O
what	O
its	O
name	O
might	O
suggest	O
,	O
e2fsprogs	B-Application
works	O
not	O
only	O
with	O
ext2	B-Application
,	O
but	O
also	O
with	O
ext3	B-Application
and	O
ext4	B-Application
.	O
</s>
<s>
Although	O
ext3	B-Application
's	O
journaling	B-Application
capability	O
can	O
reduce	O
the	O
need	O
to	O
use	O
e2fsck	B-Device
,	O
it	O
is	O
sometimes	O
still	O
necessary	O
to	O
help	O
protect	O
against	O
kernel	B-Operating_System
bugs	O
or	O
bad	O
hardware	O
.	O
</s>
<s>
With	O
ext4	B-Application
the	O
e2fsck	B-Device
runtime	O
should	O
come	O
down	O
considerably	O
,	O
as	O
can	O
be	O
seen	O
from	O
the	O
graph	O
.	O
</s>
<s>
As	O
the	O
userspace	B-Operating_System
companion	O
for	O
the	O
ext2	B-Application
,	O
ext3	B-Application
,	O
and	O
ext4	B-Application
drivers	O
in	O
the	O
Linux	B-Operating_System
kernel	I-Operating_System
,	O
the	O
e2fsprogs	B-Application
are	O
most	O
commonly	O
used	O
with	O
Linux	B-Application
.	O
</s>
<s>
However	O
,	O
they	O
have	O
been	O
ported	O
to	O
other	O
systems	O
,	O
such	O
as	O
FreeBSD	B-Operating_System
and	O
Darwin	B-Operating_System
.	O
</s>
