`zgrep -r pattern directory` does not work because zgrep ends up running `zcat directory | grep ...`, which obviously makes no sense.
`zgrep -e foo -e bar file(s)` will disregard all but the first -e option, the second "-e" and the "bar" are treated as files to search in. The first "-e pattern" on a zgrep command line will terminate option parsing and treat anything following as files to search, so `zgrep -i -e FOO file_containing_foo` is case-insensitive but `zgrep -e FOO -i file_containing_foo` isn't. Don't even think of attempting something like `zgrep -ie FOO file_containing_foo`. There are probably other issues with it, I have stopped investigating as soon as I noticed that despite having what appears to be FreeBSD's grep in usr.bin/grep, which even supports being run as zgrep, we default to build our grep from external/gpl2/grep, i.e. GNU grep. I'm wondering what's the deal with that...? I'm inclined to build my systems with MKBSDGREP=yes from now on, or is there a good reason not to? Timo Buhrmester
