On Fri 18 Oct 2019 22:49:23 +1100, Trent W. Buck wrote: > Paul Eggert wrote: > > On 10/16/19 5:19 PM, Trent W. Buck wrote: > > > I would expect "grep -Fw -e 4GB -e DDR4 --and" to print the same thing as > > > > > > grep -Fw 4GB | grep -Fw DDR4 | grep -Fw -e 4GB -e DDR4 -o > > > > You're right, it's not obvious. :-) > > > > It may be better to just pipe greps together, as you do now. That's simple > > and fast enough for this relatively-uncommon case, and it's portable to all > > greps. > > I admit that most of the time, I want "grep --and" for a small dataset > (<1MB computer_parts.txt), so it's merely a convenience.
I noticed I forgot to attach a helper script I've been using for decades. Here it is.
foldr.sh
Description: Bourne shell script