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linux bash学习(一)
1.请你以 read 指令的用途，撰写一个 script ，他可以让使用者输入：1. first name 与 2. last name， 最后并且在屏幕上显示：“Your full name is: ”的内容：
#!/bin/bash #Program: # use input his first name and last name.Program shows his full name. #History: #2017/07/27 lzyer release read -p "Please input your first name:" firstname read -p "Please input your last name:" lastname echo "Your full name is : ${firstname}.${lastname}"
2.随日期变化：利用 date 进行文件的创建
#!/bin/bash #Program: # Program creates three files, which named by user‘s input and date command. #History #2017/07/28 lzyer First release echo "I will use ‘touch‘ command to create 3 file." read -p "Please input your filename :" fileuser filename=${fileuser:-"filename"} date1=$(date --date=‘2 days ago‘ +%Y%m%d) date2=$(date --date=‘1 days ago‘ +%Y%m%d) date3=$(date +%Y%m%d) file1=${filename}${date1} file2=${filename}${date2} file3=${filename}${date3} touch "${file1}" "${file2}" "${file3}"
3.数值运算：简单的加减乘除
#!/bin/bash #Program: # use input 2 integer numbers; program will cross these two numbers. #History: #2017/07/28 lzyer First release echo "you should input 2 numbers, i will multipfying them !" read -p "first numbe: " firstnumber read -p "second number: " secondnumber total=$((${firstnumber}*${secondnumber})) echo "The result of ${firstnumber} x ${secondnumber} ==> ${total}"
4.sh和source的差异性
linux bash学习(一)
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