<s>
This	O
is	O
a	O
list	B-Application
of	I-Application
Unix	I-Application
commands	I-Application
as	O
specified	O
by	O
IEEE	O
Std	O
1003.1-2008	O
,	O
which	O
is	O
part	O
of	O
the	O
Single	O
UNIX	B-Application
Specification	O
(	O
SUS	O
)	O
.	O
</s>
<s>
These	O
commands	O
can	O
be	O
found	O
on	O
Unix	B-Application
operating	I-Application
systems	I-Application
and	O
most	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
.	O
</s>
<s>
+	O
IEEE	O
Std	O
1003.1-2008	O
utilities	O
Name	O
Category	O
Status	O
(	O
Option	O
code	O
)	O
Description	O
First	O
appeared	O
SCCS	B-Device
Optional	O
(	O
XSI	O
)	O
Create	O
and	O
administer	O
SCCS	B-Device
files	O
PWB	O
UNIX	B-Application
Misc	O
Mandatory	O
Define	O
or	O
display	O
aliases	O
Misc	O
Mandatory	O
Create	O
and	O
maintain	O
library	B-Library
archives	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Text	O
processing	O
Optional	O
(	O
FR	O
)	O
Interpret	O
carriage-control	O
characters	O
System	O
V	O
Process	O
management	O
Mandatory	O
Execute	O
commands	O
at	O
a	O
later	O
time	O
Version	O
7	O
AT&T	O
UNIX	B-Application
Text	O
processing	O
Mandatory	O
Pattern	O
scanning	O
and	O
processing	O
language	O
Version	O
7	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Return	O
non-directory	O
portion	O
of	O
a	O
pathname	O
;	O
see	O
also	O
dirname	B-Device
Version	O
7	O
AT&T	O
UNIX	B-Application
Process	O
management	O
Mandatory	O
Schedule	O
commands	O
to	O
be	O
executed	O
in	O
a	O
batch	B-Device
queue	O
Misc	O
Mandatory	O
Arbitrary-precision	B-Algorithm
arithmetic	I-Algorithm
language	O
Version	O
6	O
AT&T	O
UNIX	B-Application
Process	O
management	O
Optional	O
(	O
UP	O
)	O
Run	O
jobs	O
in	O
the	O
background	O
/	O
C	B-Language
programming	I-Language
Optional	O
(	O
CD	B-Application
)	O
Compile	B-Language
standard	O
C	B-Language
programs	I-Language
IEEE	O
Std	O
1003.1-2001	O
Misc	O
Optional	O
(	O
XSI	O
)	O
Print	O
a	O
calendar	O
Version	O
5	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Concatenate	O
and	O
print	O
files	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Change	O
the	O
working	O
directory	O
Version	O
6	O
AT&T	O
UNIX	B-Application
C	B-Language
programming	I-Language
Optional	O
(	O
XSI	O
)	O
Generate	O
a	O
C-language	B-Language
call	B-Application
graph	I-Application
System	O
V	O
Filesystem	O
Mandatory	O
Change	O
the	O
file	O
group	O
ownership	O
PWB	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Change	O
the	O
file	O
modes/attributes/permissions	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Change	O
the	O
file	O
ownership	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Write	O
file	O
checksums	B-Algorithm
and	O
sizes	O
4.4BSD	O
Filesystem	O
Mandatory	O
Compare	O
two	O
files	O
;	O
see	O
also	O
diff	B-Application
Version	O
1	O
AT&T	O
UNIX	B-Application
Text	O
processing	O
Mandatory	O
Select	O
or	O
reject	O
lines	O
common	O
to	O
two	O
files	O
Version	O
4	O
AT&T	O
UNIX	B-Application
Shell	B-Application
programming	O
Mandatory	O
Execute	O
a	O
simple	O
command	O
Filesystem	O
Optional	O
(	O
XSI	O
)	O
Compress	B-Device
data	O
4.3BSD	O
Filesystem	O
Mandatory	O
Copy	O
files	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Misc	O
Mandatory	O
Schedule	O
periodic	O
background	O
work	O
System	O
V	O
Text	O
processing	O
Mandatory	O
Split	O
files	O
based	O
on	O
context	O
PWB	O
UNIX	B-Application
C	B-Language
programming	I-Language
Optional	O
(	O
SD	O
)	O
Create	O
a	O
tags	O
file	O
3BSD	O
Text	O
processing	O
Mandatory	O
Cut	O
out	O
selected	O
fields	O
of	O
each	O
line	O
of	O
a	O
file	O
System	O
III	O
C	B-Language
programming	I-Language
Optional	O
(	O
XSI	O
)	O
Generate	O
a	O
C-language	B-Language
program	O
cross-reference	O
table	O
System	O
V	O
Misc	O
Mandatory	O
Display	O
the	O
date	O
and	O
time	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Convert	O
and	O
copy	O
a	O
file	O
Version	O
5	O
AT&T	O
UNIX	B-Application
SCCS	B-Device
Optional	O
(	O
XSI	O
)	O
Make	O
a	O
delta	B-Application
(	O
change	O
)	O
to	O
an	O
SCCS	B-Device
file	O
PWB	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Report	O
free	O
disk	O
space	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Text	O
processing	O
Mandatory	O
Compare	O
two	O
files	O
;	O
see	O
also	O
cmp	B-Application
Version	O
5	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Return	O
the	O
directory	O
portion	O
of	O
a	O
pathname	O
;	O
see	O
also	O
basename	B-Application
System	O
III	O
Filesystem	O
Mandatory	O
Estimate	O
file	O
space	O
usage	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Shell	B-Application
programming	O
Mandatory	O
Write	O
arguments	O
to	O
standard	B-Operating_System
output	I-Operating_System
Version	O
2	O
AT&T	O
UNIX	B-Application
Text	O
processing	O
Mandatory	O
The	B-Application
standard	I-Application
text	I-Application
editor	I-Application
Version	O
1	O
AT&T	O
UNIX	B-Application
Misc	O
Mandatory	O
Set	O
the	O
environment	O
for	O
command	O
invocation	O
System	O
III	O
Text	O
processing	O
Optional	O
(	O
UP	O
)	O
Text	O
editor	O
1BSD	O
Text	O
processing	O
Mandatory	O
Convert	O
tabs	O
to	O
spaces	O
3BSD	O
Shell	B-Application
programming	O
Mandatory	O
Evaluate	O
arguments	O
as	O
an	O
expression	O
Version	O
7	O
AT&T	O
UNIX	B-Application
Shell	B-Application
programming	O
Mandatory	O
Return	O
false	O
value	O
Version	O
7	O
AT&T	O
UNIX	B-Application
Misc	O
Optional	O
(	O
UP	O
)	O
Process	O
the	O
command	O
history	O
list	O
Process	O
management	O
Optional	O
(	O
UP	O
)	O
Run	O
jobs	O
in	O
the	O
foreground	O
Filesystem	O
Mandatory	O
Determine	O
file	O
type	O
Version	O
4	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Find	O
files	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Text	O
processing	O
Mandatory	O
Filter	O
for	O
folding	O
lines	O
1BSD	O
FORTRAN77	O
programming	O
Obsolescent	O
(	O
FD	O
)	O
FORTRAN	B-Application
compiler	B-Language
XPG4	O
Process	O
management	O
Optional	O
(	O
XSI	O
)	O
List	O
process	B-Operating_System
IDs	I-Operating_System
of	O
all	O
processes	O
that	O
have	O
one	O
or	O
more	O
files	O
open	O
System	O
V	O
Misc	O
Mandatory	O
Generate	O
a	O
formatted	O
message	O
catalog	O
SCCS	B-Device
Optional	O
(	O
XSI	O
)	O
Get	O
a	O
version	O
of	O
an	O
SCCS	B-Device
file	O
PWB	O
UNIX	B-Application
Misc	O
Mandatory	O
Get	O
configuration	O
values	O
Shell	B-Application
programming	O
Mandatory	O
Parse	O
utility	O
options	O
Misc	O
Mandatory	O
Search	O
text	O
for	O
a	O
pattern	O
Version	O
4	O
AT&T	O
UNIX	B-Application
Misc	O
Mandatory	O
Hash	B-Device
database	O
access	O
method	O
Text	O
processing	O
Mandatory	O
Copy	O
the	O
first	O
part	O
of	O
files	O
PWB	O
UNIX	B-Application
Text	O
processing	O
Mandatory	O
Codeset	O
conversion	O
HP-UX	O
Misc	O
Mandatory	O
Return	O
user	O
identity	O
System	O
V	O
Misc	O
Optional	O
(	O
XSI	O
)	O
Remove	O
a	O
message	O
queue	O
,	O
semaphore	O
set	O
,	O
or	O
shared	O
memory	O
segment	O
identifier	O
System	O
V	O
Misc	O
Optional	O
(	O
XSI	O
)	O
Report	O
interprocess	O
communication	O
facilities	O
status	O
System	O
V	O
Process	O
management	O
Optional	O
(	O
UP	O
)	O
Display	O
status	O
of	O
jobs	O
in	O
the	O
current	O
session	O
Text	O
processing	O
Mandatory	O
Merges	O
two	O
sorted	O
text	O
files	O
based	O
on	O
the	O
presence	O
of	O
a	O
common	O
field	O
Version	O
7	O
AT&T	O
UNIX	B-Application
Process	O
management	O
Mandatory	O
Terminate	O
or	O
signal	O
processes	O
Version	O
4	O
AT&T	O
UNIX	B-Application
C	B-Language
programming	I-Language
Optional	O
(	O
CD	B-Application
)	O
Generate	O
programs	O
for	O
lexical	B-Application
tasks	I-Application
Version	O
7	O
AT&T	O
UNIX	B-Application
Filesystem	O
Optional	O
(	O
XSI	O
)	O
Create	O
a	O
hard	O
link	O
to	O
a	O
file	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Link	O
files	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Misc	O
Mandatory	O
Get	O
locale-specific	O
information	O
Misc	O
Mandatory	O
Define	O
locale	O
environment	O
Shell	B-Application
programming	O
Mandatory	O
Log	O
messages	O
4.3BSD	O
Misc	O
Mandatory	O
Return	O
the	O
user	O
's	O
login	O
name	O
4.4BSD	O
Text	O
processing	O
Mandatory	O
Send	O
files	O
to	O
a	O
printer	O
System	O
V	O
Filesystem	O
Mandatory	O
List	O
directory	O
contents	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Misc	O
Mandatory	O
Macro	O
processor	O
PWB	O
UNIX	B-Application
Misc	O
Mandatory	O
Process	O
messages	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Programming	O
Optional	O
(	O
SD	O
)	O
Maintain	O
,	O
update	O
,	O
and	O
regenerate	O
groups	O
of	O
programs	O
PWB	O
UNIX	B-Application
Misc	O
Mandatory	O
Display	O
system	O
documentation	O
Version	O
2	O
AT&T	O
UNIX	B-Application
Misc	O
Mandatory	O
Permit	O
or	O
deny	O
messages	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Make	B-Application
directories	I-Application
Version	O
1	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Make	O
FIFO	B-Operating_System
special	O
files	O
4.4BSD	O
Text	O
processing	O
Optional	O
(	O
UP	O
)	O
Display	O
files	O
on	O
a	O
page-by-page	O
basis	O
3BSD	O
Filesystem	O
Mandatory	O
Move	O
or	O
rename	O
files	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Misc	O
Mandatory	O
Change	O
to	O
a	O
new	O
group	O
Version	O
6	O
AT&T	O
UNIX	B-Application
Process	O
management	O
Mandatory	O
Invoke	O
a	O
utility	O
with	O
an	O
altered	O
nice	O
value	O
Version	O
4	O
AT&T	O
UNIX	B-Application
Text	O
processing	O
Optional	O
(	O
XSI	O
)	O
Line	O
numbering	O
filter	O
System	O
III	O
C	B-Language
programming	I-Language
Optional	O
(	O
SD	O
,	O
XSI	O
)	O
Write	O
the	O
name	O
list	O
of	O
an	O
object	B-Application
file	I-Application
Version	O
1	O
AT&T	O
UNIX	B-Application
Process	O
management	O
Mandatory	O
Invoke	O
a	O
utility	O
immune	O
to	O
hangups	B-General_Concept
Version	O
4	O
AT&T	O
UNIX	B-Application
Misc	O
Mandatory	O
Dump	O
files	O
in	O
various	O
formats	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Text	O
processing	O
Mandatory	O
Merge	O
corresponding	O
or	O
subsequent	O
lines	O
of	O
files	O
Version	O
32V	O
AT&T	O
UNIX	B-Application
Text	O
processing	O
Mandatory	O
Apply	O
changes	O
to	O
files	O
4.3BSD	O
Filesystem	O
Mandatory	O
Check	O
pathnames	O
Misc	O
Mandatory	O
Portable	O
archive	O
interchange	O
4.4BSD	O
Text	O
processing	O
Mandatory	O
Print	O
files	O
Version	O
1	O
AT&T	O
UNIX	B-Application
Shell	B-Application
programming	O
Mandatory	O
Write	O
formatted	O
output	O
4.3BSD-Reno	O
SCCS	B-Device
Optional	O
(	O
XSI	O
)	O
Print	O
an	O
SCCS	B-Device
file	O
PWB	O
UNIX	B-Application
Process	O
management	O
Mandatory	O
Report	O
process	O
status	O
Version	O
4	O
AT&T	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Print	O
working	O
directory	O
Version	O
5	O
AT&T	O
UNIX	B-Application
Batch	B-Device
utilities	O
Obsolescent	O
(	O
BE	O
)	O
Alter	O
batch	B-Device
job	O
Batch	B-Device
utilities	O
Obsolescent	O
(	O
BE	O
)	O
Delete	O
batch	B-Device
jobs	O
Batch	B-Device
utilities	O
Obsolescent	O
(	O
BE	O
)	O
Hold	O
batch	B-Device
jobs	O
Batch	B-Device
utilities	O
Obsolescent	O
(	O
BE	O
)	O
Move	O
batch	B-Device
jobs	O
Batch	B-Device
utilities	O
Obsolescent	O
(	O
BE	O
)	O
Send	O
message	O
to	O
batch	B-Device
jobs	O
Batch	B-Device
utilities	O
Obsolescent	O
(	O
BE	O
)	O
Rerun	O
batch	B-Device
jobs	O
Batch	B-Device
utilities	O
Obsolescent	O
(	O
BE	O
)	O
Release	O
batch	B-Device
jobs	O
Batch	B-Device
utilities	O
Obsolescent	O
(	O
BE	O
)	O
Select	O
batch	B-Device
jobs	O
Batch	B-Device
utilities	O
Obsolescent	O
(	O
BE	O
)	O
Signal	O
batch	B-Device
jobs	O
Batch	B-Device
utilities	O
Obsolescent	O
(	O
BE	O
)	O
Show	O
status	O
of	O
batch	B-Device
jobs	O
Batch	B-Device
utilities	O
Obsolescent	O
(	O
BE	O
)	O
Submit	O
a	O
script	O
Shell	B-Application
programming	O
Mandatory	O
Read	O
a	O
line	O
from	O
standard	O
input	O
Misc	O
Returns	O
the	O
target	O
of	O
a	O
symbolic	B-Application
link	I-Application
2.1BSD	O
Process	O
management	O
Mandatory	O
Set	O
nice	O
values	O
of	O
running	O
processes	O
4BSD	O
Filesystem	O
Mandatory	O
Remove	B-Device
directory	I-Device
entries	O
Version	O
1	O
AT&T	O
UNIX	B-Application
SCCS	B-Device
Optional	O
(	O
XSI	O
)	O
Remove	O
a	O
delta	B-Application
from	O
an	O
SCCS	B-Device
file	O
PWB	O
UNIX	B-Application
Filesystem	O
Mandatory	O
Remove	B-Device
directories	I-Device
,	O
if	O
they	O
are	O
empty	O
.	O
</s>
