On Mon, 14 Nov 2022 22:22:31 -0800, Ilya Zakharevich wrote:
grep with -a (or --text) option does not strip CR from line ends
That has been the case for over five years, as discussed about 2017-02, decided
and announced in utilities releases that month (gawk, grep, sed) and earlier in
bash IIRC, to avoid corrupting files and pipeliness by doing so, and for
compatibility with other non-Windows systems; see discussions in threads:
https://cygwin.com/legacy-ml/cygwin/2017-02/msg00152.html
https://cygwin.com/legacy-ml/cygwin/2017-02/msg00188.html
https://cygwin.com/legacy-ml/cygwin/2017-02/msg00189.html
This does not emit anything (contrary to the man page, which says:
If grep decides the file is a text file, it strips the CR
characters from the original file contents (to make regular
expressions with ^ and $ work correctly).
That is under -U, --binary, where it also says:
"This option has no effect on platforms other than MS-DOS and MS-Windows."
Cygwin does not operate as DOS nor Windows, but does offer text mounts, which
may still strip CRs from CR-LF EoL markers in *files*.
--
Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut
-- Antoine de Saint-Exupéry
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