ARRAY=( 'Debian Linux' 'Redhat Linux' Ubuntu Linux ) # get number of elements in the array ELEMENTS=${#ARRAY[@]} # echo each element in array # for loop for (( i=0;i<$ELEMENTS;i++)); do echo ${ARRAY[${i}]} done
Length of first element of array:显示属组中第几号元素中字符长度; ${#array} ${#array[0]}(属组当中第0号元素当中有多少个字符长度) ${#array[1]} Number of elements in array:(显示AA数组中元素有赋值不为空的个数) ${#array[*]} ${#array[@]} ${#array[8]} 写一个脚本: 随机从同学们...
8.1. Declare simple bash array #!/bin/bash #Declare array with 4 elements ARRAY=( 'Debian Linux' 'Redhat Linux' Ubuntu Linux ) # get number of elements in the array ELEMENTS=${#ARRAY[@]} # echo each element in array # for loop for (( i=0;i<$ELEMENTS;i++)); do echo ${ARRAY...
declare -a declares an array and all the elements in the parentheses are the elements of an array. 3. Print the Whole Bash Array There are different ways to print the whole elements of the array. If the index number is @ or *, all members of an array are referenced. You can traverse...
Get all elements of an array ${array_name[@]} Get length of an array ${#array_name[@]} ${#array_name[*]} Get length of element n ${#array_name[n]} Through an array for data in ${array[@]}; do echo ${data} done 5. 函数 Define firstly and then use it. Two ways to ...
echo ${#sounds[@]} # Number of elementsunset sounds[dog] # Delete dog 迭代 123 for val in "${sounds[@]}"; do echo $valdone 123 for key in "${!sounds[@]}"; do echo $keydone Bash 条件句 整数条件 条件描述 [[ NUM -eq NUM ]] 等于Equal [[ NUM -ne NUM ]] 不等于 Not ...
在Redis中，可以对列表两端插入(push)和弹出(pop)，还可以获取指定范围的元素列表、获取指定索引下标的...
# will move to 0 and all remaining elements will follow at the same # number of steps that the new first element (previously second) # has decremented. # function array_shift { eval " case \"\${#$1[@]}\" in 0) return 1 ;; 1) ${2:+"$2=\${$1[@]:0:1}"} $1=() ;...
Array Explanation array=(“elements of array”) Used to create an array of strings. ${array[0]} Used to get the first element of the array. ${array[*]} Used to get all values in the array. ${array[1]} Get the last value in the array. ${array[@]} Expand all of the array ...
# define array value my_array=("aaa" "bbb" "ccc" "ddd") my_array[0]="eee" # get array element echo ${my_array[0]} echo # get array all elements echo ${my_array[*]} echo ${my_array[@]} # get number of array elements ...