Paul Eggert wrote:
In this particular case I'm afraid your memory has played tricks on you
---
You may be right ..;-(
I found these:
http://unix.stackexchange.com/questions/19491/how-to-specify-characters-using-hexadecimal-codes-in-grep
http://stackoverflow.com/questions/6319878/using-grep-to-search-for-hex-strings-in-a-file
and two others which pointed to the '-P' option
as being the only way in newer grep's..
Needless to say, I am scandalized...
However, One could always ask that those be added so as to be compatible
w/sed, awk....etc?
I.e. an RFE??
I'm pretty sure the grep didn't have backreferences in it before either.
You going to tell me those date back to Bell labs as well?
I.e.-- if you look at earlier info pages, there wasn't a separate regex
for grep section (that I could fine).... many of the regex-taking utils
pointed at each other for more clarification.
I thought it was from those that grep had the same notation. Not exactly
a faulty memory, but improbable logic?
