function variable scope

#!/usr/bin/sh

function locvar
{
    typeset lvar
    lvar='local'
    echo "fxn gvar:$gvar"
    gvar='changed in fxn'
}

gvar='global'
echo "script gvar: $gvar"
locvar
echo "script lvar: $lvar"
echo "script gvar: $gvar"
  

function return

#!/usr/bin/sh

function mult
{
    typeset -i lvar=$1
    echo "lvar is $lvar"
    (( x = lvar * 2 ))
    print "x :$x"
    return $x
}

typeset -i num=$1
echo "script num:$num"
mult $num
result=$?

print " 2 times $num is $result"