[{echo 2 gt 1}] [{echo 1 gt 2}]
[1] []
{echo (2 gt 1) + (3 gt 1) + (0 gt 1)}
2
{echo ('a' eq 'a') . '/' . ('a' eq 'b')}
1/
{if 'x' eq 'x'}holds{/if}
holds