shellScript之数组操作6

#!/bin/bashdeclare -a arrivedecho "what city have you been arrived?"echo "The input should be sperated from echo other by a space."read -a arrivedechofor i in "${arrived[@]}"do    echo $idoneecho "The length of this array is ${#arrived[@]}"echo "Executing UNSET operating..."unset arrived[1]echo "The length of this array is ${#arrived[@]}"echo "Executing  unset operating...."unset arrivedecho "The length of this array is ${#arrived[@]}"

结果：

~/script/shell_text $ ./11array.sh what city have you been arrived?The input should be sperated from echo other by a space.beijing handan tianjing shanghai hongkongbeijinghandantianjingshanghaihongkongThe length of this array is 5Executing UNSET operating...The length of this array is 4Executing  unset operating....The length of this array is 0