shell單引號屏蔽變量方法

[goforit ~]$ name="玖零後大叔"
[goforit~]$ echo $name
玖零後大叔
[goforit ~]$ echo "$name"
玖零後大叔
[goforit ~]$ echo '$name'
$name
[goforit ~]$ echo "'"$name"'"
'玖零後大叔'
[goforit ~]$ echo '"'$name'"'
"玖零後大叔"