问将bash脚本中收到的选项传递给被调用的脚本、命令或内置

EN

eval "diff ${optstring} ${file} ${TRG_DIR}/${filebase2}"

set -o errexit -o noclobber -o nounset -o pipefail
params="$(getopt -o qy --long brief,side-by-side,suppress-common-lines --name "$0" -- "$@")"

if [ $? != 0 ] ; then echo "Failed parsing options." >&2 ; exit 1 ; fi

echo params=$params
echo params=$@

eval set -- "$params"

optstring=""
# These variables are likely not needed
brief=false
sbs=false
scl=false

#while false ; do
while true ; do
    case "$1" in
        -q|--brief)
            optstring=${optstring}" -q"
            brief=true
            echo "brief"
            shift
            ;;
        -y|--side-by-side)
            optstring=${optstring}" -y"
            sbs=true
            echo "side-by-side"
            shift
            ;;
        --suppress-common-lines)
            optstring=${optstring}" --suppress-common-lines"
            scl=true
            echo "suppress-common-lines"
            shift
            ;;
        --)
            shift
            break
            ;;
        *)
            echo "Not implemented: $1" >&2
            exit 1
            ;;
    esac
done
echo optstring=${optstring}