Convert environment variables to command-line arguments

export MKCMDARGV_ARGS='[abc def]'
export MKCMDARGV_OPTIONS='{ a: 0, foo: 123 }'
export MKCMDARGV_SINGLE_FLAGS='sfx'
export MKCMDARGV_DOUBLE_FLAGS='quiet splash'
echo $(mkcmdargv)

MIT © Hoàng Văn Khải