变量之数组操作：
参考网址：http://www.jb51.net/article/55253.htm
#直接赋值
[[email protected]-yum yum.repos.d]# name[0]=chengd
[[email protected]-yum yum.repos.d]# name[1]=xrd
[[email protected]-yum yum.repos.d]# name[2]=cxx
#小括号赋值
[[email protected]-yum yum.repos.d]# age=(20 19 18)
#遍历数组变量
[[email protected]-yum yum.repos.d]# for i in ${name[@]};do echo $i ;done
chengd
xrd
cxx
[[email protected]-yum yum.repos.d]# for i in ${age[@]};do echo $i ;done
20
19
18
#获取数组长度
[[email protected]-yum yum.repos.d]# echo ${#name[@]}
3
[[email protected]-yum yum.repos.d]# echo ${#age[*]}
3
#删除数组元素
[[email protected]-yum yum.repos.d]# unset name[1]
[[email protected]-yum yum.repos.d]# echo ${#name[@]}
2
[[email protected]-yum yum.repos.d]# for i in ${name[@]};do echo $i ;done
chengd
cxx
#删除数组
[[email protected]-yum yum.repos.d]# unset name
[[email protected]-yum yum.repos.d]# echo ${#name[@]}
0
[[email protected]-yum yum.repos.d]# for i in ${name[@]};do echo $i ;done
时间： 2024-10-14 10:12:54