--------------纯输出----------------1.sh

#!/bin/sh

echo -e "Hello!world!\a\n"

exit 0

--------------获得用户输入----------------2.sh

#!/bin/sh

read -p "Please input your name:" name

echo -e "\nHello!$name"

exit 0

--------------日期计算昨天今天明天----------------3.sh

#!/bin/sh

yesterday=$(date --date='1 days ago' +%Y/%m/%d)

today=$(date +%Y%m%d)

tomorrow=$(date -d '1 days' +%Y-%m-%d)

echo -e "Yesterday is $yesterday"

echo -e "Today is $today"

echo -e "Tomorrow is $tomorrow"

exit 0

--------------100以内加减法计算游戏----------------4.sh

#!/bin/sh

declare -i rnd1=$RANDOM

declare -i rnd2=$RANDOM

op1=$(( $rnd1%100 ))

op2=$(( $rnd2%100 ))

if [ $op2 -gt $op1 ]; then

   op3=$op2

   op2=$op1

   op1=$op3

fi

op4=$(( $op1%2 ))

if [ $op4 == 1 ]; then

   result=$(( $op1+$op2 ))

   read -p "$op1+$op2=" resp

   if [ $result == $resp ]; then

      echo " v"

   else

      echo " x"

   fi

else

   result=$(( $op1-$op2 ))

   read -p "$op1-$op2=" resp

   if [ $result == $resp ]; then

      echo " v"

   else

      echo " x"

   fi

fi

exit 0

--------------待续----------------