POSIX.2: Commands and Utilities
The following synopsis is intended to serve only as a starting point
for finding out where command interfaces are defined. Please look up
the exact specification in the interface definitions themselves. We try to
follow the POSIX (R) specifications, if possible.
- m
- Indicates that the interface is defined as mandatory.
- d
- Indicates that the interface is part of the Development option.
- f
- Indicates that the interface is part of the Fortran option.
- l
- Indicates that the interface is part of the Legacy option.
- o
- Indicates that the interface is optional.
- .
- Indicates that the interface is not specified.
| Interface
| UNIX 98
| UNIX95
| POSIX.2
| SVID3
| 4.3BSD
|
|---|
| admin
| d
| d
| .
| m
| .
|
| alias
| m
| m
| m
| .
| m
|
| ar
| m
| m
| o
| m
| m
|
| asa
| m
| m
| o
| .
| .
|
| at
| m
| m
| m
| m
| m
|
| awk
| m
| m
| m
| m
| m
|
| basename
| m
| m
| m
| m
| m
|
| batch
| m
| m
| m
| m
| .
|
| bc
| m
| m
| m
| .
| m
|
| bg
| m
| m
| m
| .
| m
|
| c89
| m
| m
| o
| .
| .
|
| cal
| m
| m
| .
| m
| m
|
| calendar
| l
| m
| .
| m
| m
|
| cancel
| l
| m
| .
| m
| .
|
| cat
| m
| m
| m
| m
| m
|
| cc
| l
| m
| .
| m
| m
|
| cd
| m
| m
| m
| m
| m
|
| cflow
| d
| d
| .
| m
| .
|
| chgrp
| m
| m
| m
| m
| m
|
| chmod
| m
| m
| m
| m
| m
|
| chown
| m
| m
| m
| m
| m
|
| cksum
| m
| m
| m
| .
| .
|
| cmp
| m
| m
| m
| m
| m
|
| col
| l
| m
| .
| m
| m
|
| comm
| m
| m
| m
| m
| m
|
| command
| m
| m
| m
| .
| .
|
| compress
| m
| m
| .
| m
| m
|
| cp
| m
| m
| m
| m
| m
|
| cpio
| l
| m
| .
| m
| .
|
| crontab
| m
| m
| m
| m
| .
|
| csplit
| m
| m
| m
| m
| .
|
| ctags
| d
| d
| m
| m
| m
|
| cu
| l
| m
| .
| m
| .
|
| cut
| m
| m
| m
| m
| .
|
| cxref
| d
| d
| .
| m
| .
|
| date
| m
| m
| m
| m
| m
|
| dd
| m
| m
| m
| m
| m
|
| delta
| d
| d
| .
| m
| .
|
| df
| m
| m
| m
| m
| m
|
| diff
| m
| m
| m
| m
| m
|
| dircmp
| l
| m
| .
| m
| .
|
| dirname
| m
| m
| m
| m
| .
|
| dis
| o
| o
| .
| m
| .
|
| du
| l
| m
| m
| m
| m
|
| echo
| m
| m
| m
| m
| m
|
| ed
| m
| m
| m
| m
| m
|
| egrep
| l
| m
| m
| m
| .
|
| env
| m
| m
| m
| m
| .
|
| ex
| m
| m
| m
| m
| m
|
| expand
| m
| m
| m
| .
| m
|
| expr
| m
| m
| m
| m
| m
|
| false
| m
| m
| m
| m
| m
|
| fc
| m
| m
| m
| .
| m
|
| fg
| m
| m
| m
| .
| m
|
| fgrep
| l
| m
| m
| m
| .
|
| file
| m
| m
| m
| m
| m
|
| find
| m
| m
| m
| m
| m
|
| fold
| m
| m
| m
| .
| m
|
| fort77
| f
| f
| o
| .
| .
|
| fuser
| m
| .
|
| .
| .
|
| gencat
| m
| m
| .
| .
| .
|
| get
| d
| d
| .
| m
| .
|
| getconf
| m
| m
| .
| .
| .
|
| getopts
| m
| m
| .
| .
| .
|
| grep
| m
| m
| m
| m
| m
|
| hash
| m
| m
| .
| .
| m
|
| head
| m
| m
| m
| m
| m
|
| iconv
| m
| m
| .
| .
| .
|
| id
| m
| m
| m
| m
| .
|
| ipcrm
| m
| .
| .
| .
| .
|
| ipcs
| m
| .
| .
| .
| .
|
| jobs
| m
| m
| m
| .
| m
|
| join
| m
| m
| m
| m
| m
|
| kill
| m
| m
| m
| m
| m
|
| lex
| d
| d
| o
| m
| m
|
| line
| l
| m
| .
| m
| .
|
| link
| m
| .
| .
| .
| m
|
| lint
| ld
| d
| .
| m
| m
|
| ln
| m
| m
| m
| m
| m
|
| locale
| m
| m
| m
| .
| .
|
| localedef
| m
| m
| m
| .
| .
|
| logger
| m
| m
| m
| .
| m
|
| logname
| m
| m
| m
| m
| .
|
| lp
| m
| m
| m
| m
| .
|
| lpstat
| l
| m
| .
| m
| .
|
| ls
| m
| m
| m
| m
| m
|
| m4
| d
| d
| .
| m
| m
|
| mail
| l
| m
| .
| m
| m
|
| mailx
| m
| m
| m
| m
| .
|
| make
| d
| d
| m
| m
| m
|
| man
| m
| m
| m
| .
| m
|
| mesg
| m
| m
| m
| m
| m
|
| mkdir
| m
| m
| m
| m
| m
|
| mkfifo
| m
| m
| m
| .
| .
|
| more
| m
| m
| m
| m
| m
|
| mv
| m
| m
| m
| m
| m
|
| newgrp
| m
| m
| m
| m
| .
|
| nice
| m
| m
| m
| m
| m
|
| nl
| m
| m
| .
| m
| .
|
| nm
| d
| d
| m
| m
| m
|
| nohup
| m
| m
| m
| m
| .
|
| od
| m
| m
| m
| m
| m
|
| pack
| l
| m
| .
| m
| .
|
| paste
| m
| m
| m
| m
| .
|
| patch
| m
| m
| m
| .
| m
|
| pathchk
| m
| m
| m
| .
| .
|
| pax
| m
| m
| m
| .
| .
|
| pcat
| l
| m
| .
| m
| .
|
| pg
| l
| m
| .
| m
| .
|
| pr
| m
| m
| m
| m
| m
|
| printf
| m
| m
| m
| m
| .
|
| prs
| d
| d
| .
| m
| .
|
| ps
| m
| m
| m
| m
| m
|
| pwd
| m
| m
| m
| m
| m
|
| read
| m
| m
| m
| .
| m
|
| renice
| m
| m
| m
| .
| m
|
| rm
| m
| m
| m
| m
| m
|
| rmdel
| d
| d
| .
| m
| .
|
| rmdir
| m
| m
| m
| m
| m
|
| sact
| d
| d
| .
| m
| .
|
| sccs
| d
| d
| .
|
| m
|
| sed
| m
| m
| m
| m
| m
|
| sh
| m
| m
| m
| m
| m
|
| sleep
| m
| m
| m
| m
| m
|
| sort
| m
| m
| m
| m
| m
|
| spell
| l
| m
| .
| m
| m
|
| split
| m
| m
| m
| m
| m
|
| strings
| m
| m
| m
| .
| m
|
| strip
| d
| d
| o
| m
| m
|
| stty
| m
| m
| m
| m
| m
|
| sum
| l
| m
| .
| m
| m
|
| tabs
| m
| m
| m
| m
| m
|
| tail
| m
| m
| m
| m
| m
|
| talk
| m
| m
| m
| .
| m
|
| tar
| l
| m
| m
| m
| m
|
| tee
| m
| m
| .
| m
| m
|
| test
| m
| m
| m
| m
| m
|
| time
| m
| m
| m
| m
| m
|
| touch
| m
| m
| m
| m
| m
|
| tput
| m
| m
| m
| .
| m
|
| tr
| m
| m
| m
| m
| m
|
| true
| m
| m
| m
| m
| m
|
| tsort
| m
| m
| .
| m
| m
|
| tty
| m
| m
| m
| m
| m
|
| type
| m
| m
| .
| .
| m
|
| ulimit
| m
| m
| .
| .
| m
|
| umask
| m
| m
| m
| m
| .
|
| unalias
| m
| m
| m
| .
| m
|
| uname
| m
| m
| m
| m
| .
|
| uncompress
| m
| m
| .
| m
| .
|
| unexpand
| m
| m
| m
| .
| .
|
| unget
| d
| d
| .
| m
| .
|
| uniq
| m
| m
| m
| m
| m
|
| unlink
| m
| .
| .
| .
| m
|
| unpack
| l
| m
| .
| m
| .
|
| uucp
| m
| m
| .
| m
| m
|
| uudecode
| m
| m
| m
| m
| m
|
| uuencode
| m
| m
| m
| m
| m
|
| uulog
| l
| m
| .
| m
| m
|
| uuname
| l
| m
| .
| m
| m
|
| uupick
| l
| m
| .
| m
| .
|
| uustat
| m
| m
| .
| m
| .
|
| uuto
| l
| m
| .
| m
| .
|
| uux
| m
| m
| .
| m
| m
|
| val
| d
| d
| .
| m
| .
|
| vi
| m
| m
| m
| m
| m
|
| wait
| m
| m
| m
| m
| m
|
| wc
| m
| m
| m
| m
| m
|
| what
| d
| d
| .
| m
| m
|
| who
| m
| m
| m
| m
| m
|
| write
| m
| m
| m
| m
| m
|
| xargs
| m
| m
| m
| m
| .
|
| yacc
| d
| d
| o
| m
| m
|
| zcat
| m
| m
| .
| m
| .
|