: ${THIS_SH:=./bash}

${THIS_SH} -c 'command . notthere ; echo one' bash
${THIS_SH} -c '. notthere ; echo two' bash

${THIS_SH} -o posix -c 'command . notthere ; echo one' bash
${THIS_SH} -o posix -c '. notthere ; echo two' bash

command ; echo $?
command -- ; echo $?
command -p ; echo $?
command -p -- ; echo $?

command recho one; echo $?
command -- recho two; echo $?
command -p echo three; echo $?
command -p -- echo four ; echo $?

command ''
echo $?

command -p
echo $?

${THIS_SH} -c 'set -e ; command false ; echo after' bash

command command command -p . notthere ; echo after 1
command -p command command . notthere ; echo after 2

command -p command -V type

set -x
command -v type
command command -v type
command -p command -v type
command -p -- command -v type
set +x