将maven 项目里面的jar 包导出目录： 在项目里面执行：

mvn dependency:copy-dependencies -DoutputDirectory=lib

shell 参数之间必有空格分开，变量申明不能有空格

while [ "$i" != "100" ]

i=$(($i+1))

#!/bin/sh

  case $1 in

        "one")

echo "Your choice is ONE"

 ;;

      "two")

echo "Your choice is TWO"

 ;;

esac

#!/bin/sh

read -p "Please input (Y/N): " yn

[ "$yn" == "Y" -o "$yn" == "y" ] && echo "OK, continue" && exit 0

[ "$yn" == "N" -o "$yn" == "n" ] && echo "Oh, interrupt!" && exit 0

echo "I don't know what your choice is" && exit 0

#!/bin/sh

while [ "$yn" != "yes" -a "$yn" != "YES" ]

do

        read -p "please in put you process" yn

done

echo "you answer is r"

until [ "$yn" == "yes" -o "$yn" == "YES" ]

do

	read -p "Please input yes/YES to stop this program: " yn

done

echo "OK! you input the correct answer."

until [ "$yn" == "yes" -o "$yn" == "YES" ] 参数之间有空格不然会报 [: too many arguments错误

#!/bin/sh

i=0

s=0

while [ "$i" != "100" ]

do

        i=$(($i+1))

        s=$(($s+$i))

done

echo "the end of total is : $s"

for animal in dog cat elephant

 do

        echo "there are ${animal}"

done

#!/bin/bash

users=$(cut -d ':' -f1 /etc/passwd)

for username in $users

do

        id $username

        finger $username

done

#!/bin/sh

network="192.168.1"              # 先定义一个网域的前面部分！

for sitenu in $(seq 1 100)       # seq 为 sequence(连续) 的缩写之意

do

	# 底下的程序在取得 ping 的回传值是正确的还是失败的！

        ping -c 1 -w 1 ${network}.${sitenu} &> /dev/null && result=0 || result=1

	# 开始显示结果是正确的启动 (UP) 还是错误的没有连通 (DOWN)

        if [ "$result" == 0 ]; then

                echo "Server ${network}.${sitenu} is UP."

        else

                echo "Server ${network}.${sitenu} is DOWN."

        fi

done