1.猜我生日
#!/bin/bash
#猜我生日，作者笑笑，2014-2-9完工
D=0
echo "猜猜我生日吧，我是哪一年"
while true
do
read A
let D++
if [ $A -lt 1993 ]
then
echo "我有那么老吗？再猜猜看哦！ "
elif [ $A -eq 1993 ]
then
echo "小子，眼力不错嘛？"
break
else
echo "我有那么小吗？再猜猜看哦！"
fi
done
2.整人的心理测试题
#!/bin/bash
#整人的心理测试题
echo " ----------------------------------------"
echo "|这是一道高智商的心里测试题，作者xiaoxiao|"
echo " ----------------------------------------"
echo
echo "做题前要有心理准备哦！"
echo " 你被困在一个孤岛上，船只能载一个人，你需要选择"
echo "A 抢船走人"
echo "B 杀死美女抢船走人"
echo "C 留下美女天天云雨"
echo "D 放走美女自己等死"
echo "请您做出选择，并按Enter键确认"
F=0
G="您可尝试做出别的选择"
while [ $F -lt 4 ]
do
read E
let F++
case "$E" in
A)
if [ $F -ne 4 ]
then
echo "禽兽！"
echo "$G!"
else
echo "禽兽！欢迎下次再来哦！"
fi
B)
if [ $F -ne 4 ]
then
echo "禽兽不如！"
echo "$G!"
else
echo "禽兽不如！欢迎回答笑笑问答！"
fi
;;
C)
if [ $F -ne 4 ]
then
echo "比禽兽还禽兽！"
echo "$G"
else
echo "比禽兽还禽兽！欢迎回答笑笑问答！"
fi
;;
D)
if [ $F -ne 4 ]
then
echo "不但不如禽兽，还是个蠢货！"
echo "$G"
else
echo "不但不如禽兽，还是个蠢货！拜拜哦！"
fi
;;
*)
echo "请您做出正确选择！"
esac
done
echo "那再猜猜我是哪月的吧！"
while true
do
read B
let D++
if [ $B -le 6 ]
then
echo " 那是一个很炎热的季节！"
elif [ $B -eq 7 ]
then
echo "没错，我就是七月份的巨蟹座！"
break
else
echo "那个季节没有雪花飘落！"
fi
done
echo "想知道我是哪一天的吗？"
while true
do
read C
let D++
if [ $C -lt 15 ]
then
echo "那天是巨蟹座的尾巴！"
elif [ $C -eq 22 ]
then
echo "你总共猜了${D}次"
echo "哈哈！1993-07-22就是我的生日，记好了哦！"
break
else
echo "那天是狮子做的头！"
fi
done
3.登陆时查看系统状态信息
#!/bin/bash
echo 系统版本
/bin/cat /etc/redhat-release
echo "系统内核"
uname=`uname -r`
echo "kernel $uname on an i686"
echo "本机网卡ip"
ifconfig | grep "inet addr" | awk ‘{print $2}‘ | awk -F: ‘{print $2}‘ | cat -n
echo "交换内存"
free -m | grep Swap | awk ‘{print $2}‘
echo "运行进程数"
allps=`/bin/ps aux| wc -l`
echo "Running Processes:$allps"
echo "登陆用户数"
alluser=`/usr/bin/who | wc -l`
echo "Login users:$alluser"
echo "磁盘利用率"
quota=`df -hT | grep "/$" | awk ‘{print $6}‘`
echo "Usage of / Filesystem:$quota"
4.检查服务是否开启，没开启会自动启动服务
#!/bin/bash
#this is else
A=`/usr/bin/pgrep $1`
if [ "$A" != "" ]
then
echo $1 is running
else
echo $1 NOT running
/sbin/service $1 start
fi
5.简单的整数计算器
#!/bin/bash
#2014-2-9修订版完工
echo " ----------------------------------"
echo "|这是一个简单的整数计算器，作者YUAN|"
echo " ----------------------------------"
echo
while :
do
read -p "请输入一个整数: " nu
expr $nu + 0 &> /dev/null
if [ $? -eq 0 ]
then
echo "第一个数是$nu"
echo
break
else
echo "您输入的$nu不是整数请重新输入"
fi
done
while :
do
read -p "请输入二个整数: " nu2
expr $nu2 + 0 &> /dev/null
if [ $? -eq 0 ]
then
echo "第二个数是$nu2"
break
else
echo "您输入的$nu2不是整数请重新输入"
fi
done
echo "------------------"
echo "| 1.加法 |"
echo "| 2.减法 |"
echo "| 3.乘法 |"
echo "| 4.除法 |"
echo "------------------"
while :
do
read -p "请输入您想执行的算法：" me
case $me in
"1")
sum=`expr $nu + $nu2`
echo "$nu+$nu2=$sum"
if [ $? -eq 0 ]
then
exit 0
fi
;;
"2")
jian=`expr $nu - $nu2`
echo "$nu-$nu2=$jian"
if [ $? -eq 0 ]
then
exit 0
fi
;;
"3")
chen=`expr $nu \* $nu2`
echo "$nu*$nu2=$chen"
if [ $? -eq 0 ]
then
exit 0
fi
;;
"4")
chu=`expr $nu / $nu2`
echo "$nu/$nu2=$chu"
if [ $? -eq 0 ]
then
exit 0
fi
;;
* )
echo "请在1、2、3、4之间做选择！"
esac
done
6.局域网FTP扫描
#!/bin/bash
#局域网IP,MAC地址扫描,作者笑笑，2014-2-11
A=192.168.1.
B=1
while [ $B -lt 255 ]
do
arping -c 1 -w 1 $A$B | grep Unicast | awk ‘{print $4,$5 }‘
let B++
done
7.局域网IP扫描
#!/bin/bash
#这是一个局域IP网扫描脚本
A=192.168.1.
for IP in {10..20}
do
ping -c 1 -i 0.2 -w 1 ${A}${IP} &> /dev/null
if [ $? -eq 0 ]
then
echo "host ${A}${IP} this is up"
else
echo "host ${A}${IP} this is down"
fi
done
8.局域网IP,MAC地址扫描
#!/bin/bash
#局域网IP,MAC地址扫描,作者笑笑，2014-2-11
A=192.168.1.
B=1
while [ $B -lt 255 ]
do
arping -c 1 -w 1 $A$B | grep Unicast | awk ‘{print $4,$5 }‘
let B++
done
9.用for语句批量添加用户
#!/bin/bash
#这是个批量添加用户的脚本
USER=xiao
A=123
for NAME in {1..10}
do
useradd ${USER}$NAME &> /dev/null
echo "${USER}${NAME}${A}" | passwd --stdin ${USER}$NAME &> /dev/null
done
10.用while和if语句批量添加用户
#!/bin/bash
#批量添加用户脚本，作者笑笑，2014-2-9
USER=xiao
A=2
while :
do
useradd ${USER}$A &> /dev/null
echo "${USER}${A}123" | passwd --stdin ${USER}$A &> /dev/null
A=`expr $A + 2`
if [ $A -eq 20 ]
then
exit 0
fi
done
11.用while批量添加用户
#!/bin/bash
#批量添加用户脚本，作者笑笑，2014-2-9
USER=xiao
A=2
while [ $A -le 20 ]
do
useradd ${USER}$A &> /dev/null
echo "${USER}${A}123" | passwd --stdin ${USER}$A &> /dev/null
A=`expr $A + 2`
done
12.计算器
#!/bin/bash
#xiaoxiao
echo 欢迎使用笑笑计算器
echo ‘请用 + - \* / 来做运算‘
which :
do
read A
B=$(expr $A)
echo "您计算的结果为$B"
done
本文出自 “飞翔的梦” 博客，请务必保留此出处http://xiaoyixiao.blog.51cto.com/8177705/1358218
原文：http://xiaoyixiao.blog.51cto.com/8177705/1358218