shell script创建库

先创建名称为 myfuns 

# my script functions

function addem {
  echo $[ $1 + $2 ]
}

function multem {
  echo $[ $1 * $3 ]
}

function divem {
  if [ $2 -ne 0 ]
  then
    echo $[ $1 / $2 ]
  else
    echo -1
  fi
}

然后创建脚本，名称为： test14.sh 

#!/bin/bash
# using functions defined in a library file
./myfuns

value1=10;
value2=5
result1=`addem $value1 $value2`
result2=`multem $value1 $value2`
result3=`divem $value1 $value2`
echo "The result of adding them is: $result1"
echo "The result of multiplying th is: $result2"
echo "The result of dividing them is: $result3"

其中 ./myfuns 是调用该文件，具体使用时可能因路径不同而使用不同的路径，本文中两个文件放在同一目录下

运行  sh test14.sh 

输出：

test14.sh: line 7: addem: command not found
test14.sh: line 8: multem: command not found
test14.sh: line 9: divem: command not found
The result of adding them is: 
The result of multiplying th is: 
The result of dividing them is: 

暂时还没找到错误在哪。