<s>
read	O
is	O
a	O
command	B-Application
found	O
on	O
Unix	B-Application
and	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
such	O
as	O
Linux	B-Application
.	O
</s>
<s>
In	O
Unix	B-Application
shells	I-Application
,	O
like	O
Bash	B-Operating_System
,	O
it	O
is	O
present	O
as	O
a	O
shell	O
built	O
in	O
function	O
,	O
and	O
not	O
as	O
a	O
separate	O
executable	O
file	O
.	O
</s>
