$ sleep 1 & sleep 60 & sleep 1.5 & sleep 70 & sleep 2 & wait [1] 323 [2] 324 [3] 325 [4] 326 [5] 327 [1] Done sleep 1 [2] Done sleep 60 [3] Done sleep 1.5 [5]+ Done sleep 2 [4]+ Done sleep 70