# get the calling program, remove anything after the space == all commands arguments
local caller; caller=$(echo $@ | sed 's/ .*//g');
# get options between "vehicle type " and closing ")", remove line return, remove spaces, anything before the opening (, remove the "|" and closing ")"
opts=$($caller --help | sed -n '/vehicle type (/,/)/p' | tr '\n' ' ' | sed -e 's/ //g' -e 's/.*(//g' -e 's/[|)]/ /g')
opts=$($caller --help | sed -n '/vehicle type/,/)/p' | sed -e '1d' | tr -d '()' | tr '\n' ' ' | sed -e 's/ //g' -e 's/.*(//g' -e 's/[|)]/ /g')
# get options between "vehicle type " and closing ")", remove line return, remove spaces, anything before the opening (, remove the "|" and closing ")"
vehicles=( $($caller --help | sed -n '/vehicle type (/,/)/p' | tr '\n' ' ' | sed -e 's/ //g' -e 's/.*(//g' -e 's/[|)]/ /g') )