<s>
killall	B-Device
is	O
a	O
command	B-Application
line	I-Application
utility	O
available	O
on	O
Unix-like	B-Operating_System
systems	I-Operating_System
.	O
</s>
<s>
The	O
implementation	O
supplied	O
with	O
genuine	O
UNIX	B-Operating_System
System	I-Operating_System
V	I-Operating_System
(	O
including	O
Solaris	B-Application
)	O
and	O
with	O
the	O
Linux	B-Application
sysvinit	O
tools	O
kills	O
all	O
processes	O
that	O
the	O
user	O
is	O
able	O
to	O
kill	B-Operating_System
,	O
potentially	O
shutting	O
down	O
the	O
system	O
if	O
run	O
by	O
root	O
.	O
</s>
<s>
The	O
implementation	O
supplied	O
with	O
the	O
FreeBSD	B-Operating_System
(	O
including	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
)	O
and	O
Linux	B-Application
psmisc	O
tools	O
is	O
similar	O
to	O
the	O
pkill	B-Device
and	O
skill	O
commands	O
,	O
killing	O
only	O
the	O
processes	O
specified	O
on	O
the	O
command	B-Application
line	I-Application
.	O
</s>
<s>
Both	O
commands	O
operate	O
by	O
sending	O
a	O
signal	B-General_Concept
,	O
like	O
the	O
kill	B-Operating_System
program	O
.	O
</s>
<s>
Kill	B-Operating_System
all	O
processes	O
named	O
xmms	O
:	O
</s>
