$ for i in {1..5}; do /usr/bin/time zsh -i -c exit; done 0.01 real 0.00 user 0.00 sys 0.01 real 0.00 user 0.00 sys 0.00 real 0.00 user 0.00 sys 0.00 real 0.00 user 0.00 sys 0.00 real 0.00 user 0.00 sys