Glenn Fowler writes:
> why would /usr/bin/getconf point away from itself?
The getconf(1) man page says:
The symbol PATH also is recognized, yielding the same value
as the confstr() name value CS_PATH.
confstr(3C) says:
_CS_PATH
If the ISO POSIX.2 standard is supported, this is the
value for the PATH environment variable that finds all
standard utilities. Otherwise the meaning of this value
is unspecified.
In other words, '/usr/bin/getconf PATH' is how you find the path
required for the POSIX.2 standards-conforming environment. POSIX.2 is
a subset of XPG4.
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