#!/bin/bash
#使用循环批量输出数组的元素
array=(a b c d e)
for ((i=0;i<${#array[@]};i++)) #从数组的第一个下标0开始,循环数组的所有下标
do
echo ${array[i]} #打印数组元素
done
练习2:通过竖向列举方法定义数组元素并批量打印
#!/bin/bash
#通过竖向列举方法定义数组元素并批量打印
array=(
shell
python
java
c#
c++
)
for ((i=0;i<${#array[@]};i++))
do
echo "This is NO.$i,then content is ${array[i]}"
done
echo ====================================
echo "array len:${#array[@]}"
练习3:将命令结果作为数组元素定义并打印
#!/bin/bash
#将命令结果作为数组元素定义并打印
dir=($(ls /array))
for ((i=0;i<${#dir[*]};i++))
do
echo "This is NO.$i,filename is ${dir[$i]}"
done
练习4:利用bash for 循环打印下面这句话中字母数不大于6的单词
#!/bin/bash
#利用bash for 循环打印下面这句话中字母数不大于6的单词
# I am westos teacher welcome to westos training class
array=(I am westos teacher welcome to westos training class)
for ((i=0;i<${#array[@]};i++))
do
if [ ${#array[$i]} -le 6 ]
then
echo ${array[$i]}
fi
done