On 9/6/22 07:28, Geoff Clare wrote:
> They were included in POSIX.2-1992 but marked as obsolescent.

Ouch, as I recall reading POSIX.2-1992 and seeing egrep and fgrep 
mentioned, but not as part of the standard. I guess I misread the 
standard. I am away from my printed copy and so cannot easily check this 
now.

I installed the attached which I hope clears this up.