bash script return value

http://www.linuxjournal.com/content/return-values-bash-functions

1.  return a value from a bash function is to just set a global variable to the result.
     // the simplest way since all variables in bash are global by default 

function myfunc()
{
    myresult='some value'
}

myfunc
echo $myresult

2.  command substitution

function myfunc()
{
    local  myresult='some value'
    echo "$myresult"
}

result=$(myfunc)   # or result=`myfunc`
echo $result