Bug 264592

Created attachment 234598 [details]
bash -x: Working Logs

After migrating from GNU Grep to BSD Grep (FreeBSD 13+), the «grep --help» command began to issue a shortened list of parameters, like «grep -h». This prevents the BASH-Completion PlugIn from Complementing the Command Keys. Please provide a Detailed Description of the Keys with the «grep --help» Command, if only for the sake of COMPATIBILITY with such a Wonderful Thing as BASH-Completion. The same goes for egrep, fgrep, rgrep, and pgrep (It gave a brief hint before).
BASH-Completion breaks after «grep --help»
It would be Great if egrep, fgrep and rgrep also work with «/ports/shells/bash-completion». Despite the fact that grep, egrep, fgrep, rgrep are Hard Links to One Binary File («find "$(dirname -- "$(whereis -b -q "grep")")" -samefile "$(whereis -b -q "grep")"»), egrep Options have never been completed with BASH-Completion before (I don't know, Why).
I'm not sure if the InCompatibility is only caused by Grep behavior, a BSD-Patch for "/usr/ports/shells/bash-completion" might be needed…

P.S. Found, that egrep Completion can be made just by adding «complete -F _longopt "egrep" "fgrep" "rgrep"» into «~/.bashrc» in FreeBSD 12.1 (not in 13.0).
P.P.S. I understand, FreeBSD uses CSH (TCSH) by Default, but I do not think, that All FreeBSD Fans MUST use TCSH or OpenBSD Fans MUST use KSH. I Spent a Month! Trying to BeFriend TCSH and MidNigth ComManDer, then installed BASH. BASH needs just one Option «HISTCONTROL="ignorespace:erasedups"» to keep History Clean of MC Commands and two more Options «bind '"\e[A" History-Search-BackWard'» & «bind '"\e[B" History-Search-ForWard'» to NaviGate the History, like TCSH.