使用gsub用两个双引号替换双引号？

Question

我正在尝试在awk中编写一个脚本（除其他外）用两个连续的双引号替换双引号的所有实例。但出于某种原因，我似乎无法正确地逃避我的双引号。

例如：

Mary had a "little" lamb

会变成

Mary had a ""little"" lamb

非常感谢！

Answer 1

你可以这样做：

echo 'Mary had a "little" lamb' | awk '{ gsub(/"/, "&&") } 1' 

输出：

Mary had a ""little"" lamb

最后1调用awk的默认块{ print $0 }。

sed更短：

echo 'Mary had a "little" lamb' | sed 's/"/&&/g'