linux sheel script demo

1. target :

输入姓、名， 输出姓名

2. create directory

mkdir ~/bin

3. create & edit sheel script

vim fullname.sh

note:  more comment is useful

#!/bin/bash
#Program
#       User inputs his first name and last name . Program shows his full name.
#History :
#2017/04/10     logan   First lease
PATH=/bin:$PATH #将当前目录加入系统环境
export PATH
read -p "Please input your firstname:" firstname
read -p "Please input your lastname:"   lastname
echo -e "\nYour full name is :" ${firstname} ${lastname}

4. run

[[email protected] bin]$ sh fullname.sh