If the behavior required by POSIX.2, POSIX.2a, XPG4, SUSv2 standards, conflicts with historical Solaris utility behavior, the original Solaris version of the utility is unchanged; a new version that is standard conforming has been provided in /usr/xpg4/bin. If the behavior required by POSIX.1-2001 or SUSv3.
A new version that is standard-conforming has been provided in /usr/xpg4/bin or /usr/xpg6/bin.
A new version that is SUSv3 standart-conforming has been provided in /usr/xpg6/bin.
Example: An application that wants use standard-conforming utilities must set the PATH (sh(1) or KSH(1) or path (csh(1)) environment variable specify the folders necessary.
