shell--数组的定义/访问/赋值/遍历
1 #!/bin/bash 2 # 数组 3 4 # 数组的定义 5 a=(0 1 2 3) 6 # 数组元素的访问 7 echo "a[0]:${a[0]}" 8 # 数组的长度 9 echo "length:${#a[*]}" 10 # 所有元素 11 echo "all element:${a[*]}" 12 # 删除某个元素 13 unset a[1] 14 echo "after unset:${a[*]}" 15 16 echo "用for in 遍历" 17 for every in ${a[*]} 18 do 19 echo "every:$every" 20 done 21 22 23 echo "用for(())遍历" 24 for ((i=0;i<=5;i++)) 25 do 26 array[$i]=0 27 done 28 29 for ((i=0;i<${#array[*]};i++)) 30 do 31 echo ${array[$i]} 32 done
输出:
a[0]:0
length:4
all element:0 1 2 3
after unset:0 2 3
用for in 遍历
every:0
every:2
every:3
用for(())遍历
0
0
0
0
0
0
