<s>
The	O
command	B-Application
command	B-Application
in	O
Unix	B-Application
and	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
is	O
a	O
utility	O
to	O
execute	O
a	O
command	B-Application
.	O
</s>
<s>
It	O
is	O
present	O
in	O
Unix	B-Application
shells	I-Application
as	O
a	O
shell	O
builtin	O
function	O
.	O
</s>
<s>
The	O
argument(s )	O
passed	O
is	O
a	O
command	B-Application
with	O
its	O
arguments	O
.	O
</s>
<s>
The	O
passed	O
command	B-Application
is	O
run	O
with	O
the	O
normal	O
shell	O
function	O
lookup	O
suppressed	O
.	O
</s>
<s>
In	O
the	O
following	O
,	O
the	O
ls	O
command	B-Application
is	O
run	O
without	O
any	O
shell	O
functions	O
or	O
aliases	O
that	O
may	O
exist	O
with	O
the	O
same	O
name	O
:	O
</s>
