<s>
The	O
Heirloom	B-Device
Project	I-Device
is	O
a	O
collection	O
of	O
traditional	B-Application
Unix	I-Application
utilities	O
.	O
</s>
<s>
Most	O
of	O
them	O
are	O
derived	O
from	O
original	O
Unix	B-Application
source	O
code	O
,	O
as	O
released	O
as	O
open-source	B-Application
by	O
Caldera	O
and	O
Sun	O
.	O
</s>
<s>
The	O
Heirloom	O
Toolchest	O
:	O
awk	B-Application
,	O
cpio	B-Application
,	O
grep	B-Application
,	O
tar	B-Application
,	O
pax	B-Device
,	O
etc	O
.	O
</s>
<s>
The	O
Heirloom	O
Documentation	O
Tools	O
:	O
nroff	B-Device
,	O
troff	B-Language
,	O
dpost	O
,	O
etc	O
.	O
</s>
<s>
Although	O
in	O
general	O
the	O
intention	O
of	O
the	O
project	O
is	O
to	O
provide	O
versions	O
of	O
Unix	B-Application
programs	O
whose	O
behavior	O
mimics	O
that	O
of	O
the	O
classic	O
versions	O
,	O
some	O
improvements	O
have	O
been	O
made	O
.	O
</s>
