Linux中的sh+source+export

实例：

1） source1.sh

#!/bin/sh

echo "--------------------------------"

var1=var1v

source source2.sh

echo $var1
echo $var2

echo "---------------------------------"

sh source3.sh

echo $var1
echo $var3

echo "----------------------------------"

export var=varv
sh source4.sh
echo $var

echo "----------------------------------"

2) source2.sh

#!/bin/sh

echo start suorce2

echo $var1

var1=var1insource2
var2=var2v

echo $var1
echo $var2
echo end source2

3) source3.sh

#!/bin/sh

echo start source3
echo $var1

var1=var1insource3
var3=var3v

echo $var1
echo $var3
echo end source3

4) source4.sh

#!/bin/sh

echo start source4

echo $var

var=varinsource4

echo $var
echo end source4

结果：

结论： http://www.cnblogs.com/itech/archive/2009/09/22/1571896.html

完!