> Return value will be the sum of exit values of each command. That's unforuntate design choice. Exit status is 8-bit only, and some programs exit with high n

> Return value will be the sum of exit values of each command. That's unforuntate design choice. Exit status is 8-bit only, and some programs exit with high numbers¹, so the sum could overflow easily. ¹ For example, when a Perl program dies, exit status is 255.