linux脚本学习小记（1）

linux脚本学习小记（1）

1.输出信息

#!/bin/bash
# Program:
#       This program is used to show "Hello World!" in screen
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin
export PATH
echo -e "Hello World! \a \n"
exit 0

结果：

2.请用户输入两个数，计算两个数的成绩

#!/bin/bash
# Program:
#       User can input 2 integer to cross by!
# History:
# 2005/08/23 lyc first release
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin/local/sbin:~/bin
export PATH
echo -e "You should input 2 number, I will corss them!\n"
read -p "first number: " firstnu
read -p "second number: " secondsu
total=$(($firstnu*secondsu))
echo -e "\nThe number $firstnu x $secondsu is ==> $total"

其中，PATH给出的是多个bin文件路径，各路径间以":"分开。

结果：