Expand description
Iterate over lines, including the line ending character(s).
This module provides the posix_version function, that returns
Some(usize) if the _POSIX2_VERSION environment variable is defined
and has value that can be parsed.
Otherwise returns None, so the calling utility would assume default behavior.
NOTE: GNU (as of v9.4) recognizes three distinct values for POSIX version: ‘199209’ for POSIX 1003.2-1992, which would define Obsolete mode ‘200112’ for POSIX 1003.1-2001, which is the minimum version for Traditional mode ‘200809’ for POSIX 1003.1-2008, which is the minimum version for Modern mode
Utilities that rely on this module:
sort (TBD)
tail (TBD)
touch (TBD)
uniq