Shell script Programming Shell array

1.bash supports one-dimensional arrays (multidimensional arrays are not supported) and does not qualify the size of the array

(1) define an array:

Array_name= (value0 value1 value2 value3)

Or

Array_name= (

Value0

Value1

value2

Value3

)

or individually defined:

Array_name[0]=value0

Array_name[1]=value1

Array_name[n]=valuen

(2) Read array: ${array name [subscript]}

Use the @ symbol to get all the elements in the array: Echo ${array_name[@]}

(3) Get the length of the array

#取得数组元素的个数

length=${#array_name [@]}

#或者

Length=${array_name[*]}

#取得数组单个元素的长度

length=${#array_name [n]}

Shell script Programming Shell array