<s>
In	O
computing	O
,	O
ren	B-Device
(	O
or	O
rename	B-General_Concept
)	O
is	O
a	O
command	B-Application
in	O
various	O
command-line	O
interpreters	O
(	O
shells	B-Operating_System
)	O
such	O
as	O
COMMAND.COM	B-Operating_System
,	O
cmd.exe	B-Device
,	O
4DOS	B-Application
,	O
4NT	B-Application
and	O
Windows	B-Application
PowerShell	I-Application
.	O
</s>
<s>
It	O
is	O
used	O
to	O
rename	B-General_Concept
computer	B-Operating_System
files	I-Operating_System
and	O
in	O
some	O
implementations	O
(	O
such	O
as	O
AmigaDOS	B-Operating_System
)	O
also	O
directories	B-Application
.	O
</s>
<s>
It	O
is	O
analogous	O
to	O
the	O
Unix	B-Application
mv	O
command	B-Application
.	O
</s>
<s>
However	O
,	O
unlike	O
mv	O
,	O
ren	B-Device
cannot	O
be	O
used	O
to	O
move	B-Device
files	O
,	O
as	O
a	O
new	O
directory	B-Application
for	O
the	O
destination	O
file	O
may	O
not	O
be	O
used	O
.	O
</s>
<s>
Alternatively	O
,	O
move	B-Device
may	O
be	O
used	O
if	O
available	O
.	O
</s>
<s>
On	O
versions	O
of	O
MS-DOS	B-Application
that	O
do	O
not	O
support	O
the	O
move	B-Device
command	B-Application
(	O
older	O
than	O
6.00	O
)	O
,	O
the	O
user	O
would	O
simply	O
copy	O
the	O
file	O
to	O
a	O
new	O
destination	O
,	O
and	O
then	O
delete	O
the	O
original	O
file	O
.	O
</s>
<s>
A	O
notable	O
exception	O
to	O
this	O
rule	O
is	O
DOSBox	B-Application
,	O
in	O
which	O
ren	B-Device
may	O
be	O
used	O
to	O
move	B-Device
a	O
file	O
,	O
since	O
move	B-Device
is	O
not	O
supported	O
.	O
</s>
<s>
The	O
command	B-Application
is	O
available	O
in	O
the	O
operating	O
systems	O
Digital	B-Application
Research	I-Application
CP/M	I-Application
,	O
MP/M	B-Operating_System
,	O
Cromemco	O
CDOS	B-Operating_System
,	O
MetaComCo	B-Device
TRIPOS	B-Operating_System
,	O
DOS	B-Device
,	O
IBM	B-Application
OS/2	I-Application
,	O
Microsoft	B-Application
Windows	I-Application
,	O
ReactOS	B-Application
,	O
SymbOS	O
,	O
and	O
DexOS	O
.	O
</s>
<s>
Multics	B-Application
includes	O
a	O
rename	B-General_Concept
command	B-Application
to	O
rename	B-General_Concept
a	O
directory	B-Application
entry	O
.	O
</s>
<s>
Stratus	B-General_Concept
OpenVOS	I-General_Concept
,	O
DEC	O
RT-11	B-Operating_System
,	O
OS/8	B-Operating_System
,	O
RSX-11	B-Application
,	O
Intel	O
ISIS-II	O
,	O
iRMX	B-Operating_System
86	I-Operating_System
,	O
TOPS-20	B-Operating_System
,	O
Zilog	O
Z80-RIO	B-Device
,	O
TSC	O
FLEX	B-Device
,	O
Microware	B-Operating_System
OS-9	B-Operating_System
,	O
DR	B-Operating_System
FlexOS	I-Operating_System
,	O
IBM/Toshiba	O
4690	B-Language
OS	I-Language
,	O
HP	B-Operating_System
MPE/iX	I-Operating_System
,	O
THEOS/OASIS	B-Device
,	O
and	O
OpenVMS	B-Operating_System
also	O
provide	O
the	O
rename	B-General_Concept
command	B-Application
which	O
in	O
some	O
cases	O
can	O
be	O
contracted	O
to	O
ren	B-Device
.	O
</s>
<s>
The	O
rename	B-General_Concept
command	B-Application
is	O
supported	O
by	O
Tim	O
Paterson	O
's	O
SCP	B-Operating_System
86-DOS	I-Operating_System
.	O
</s>
<s>
On	O
MS-DOS	B-Application
,	O
the	O
command	B-Application
is	O
available	O
in	O
versions	O
1	O
and	O
later	O
.	O
</s>
<s>
DR	O
DOS	B-Device
6.0	O
also	O
includes	O
an	O
implementation	O
of	O
the	O
and	O
commands	O
.	O
</s>
<s>
In	O
Windows	B-Application
PowerShell	I-Application
,	O
ren	B-Device
is	O
a	O
predefined	O
command	B-Device
alias	I-Device
for	O
the	O
Rename-Item	O
Cmdlet	O
which	O
basically	O
serves	O
the	O
same	O
purpose	O
.	O
</s>
<s>
TSL	O
PC-MOS	O
includes	O
an	O
implementation	O
of	O
rename	B-General_Concept
.	O
</s>
<s>
It	O
is	O
also	O
available	O
in	O
the	O
open	O
source	O
MS-DOS	B-Application
emulator	B-Application
DOSBox	B-Application
.	O
</s>
<s>
This	O
will	O
rename	B-General_Concept
a	O
default	O
video	O
found	O
in	O
Windows	B-Device
7	I-Device
with	O
a	O
new	O
name	O
:	O
</s>
<s>
To	O
remove	O
certain	O
characters	O
of	O
a	O
file	O
name	O
in	O
Microsoft	B-Application
Windows	I-Application
command	B-Device
prompt	I-Device
(	O
XP	O
&	O
Higher	O
)	O
:	O
</s>
