shell different between return and exit

1. return used in function, 

    shell will continue after return from function 

2. exit used in everywhere of shell, stop and exit shell immediately.

example:

#========================

function testreturn（）{

   echo "It will return 1"

   return 1

}

function testexit(){

   echo "It will exit 1"

   exit 1 

}

echo "start..."

testreturn

echo " after return "

testexit

echo " after exit"

#========================

#run result:

start...

It will return 1

after return 

It will exit 1

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