'sw' is the two-letter prefix of the utilities belonging to the POSIX System Administration command set. They are: swask, swcopy, swconfig, swinstall, swlist, swmodify, swpackage, swremove, and swverify.

These are described in the Open Group XDSA CAE Spec C701. C701 is practically identical to ISO/IEC 15068-2:1999. (ISO/IEC 15068-2:1999 is identical line-for-line to IEEE 1387.2-1995).