小编use*_*439的帖子

json文件如下:

{"name" :"sam",
"age":23,
"designation":"doctor"}

现在我想使用bash脚本在文件末尾添加另一个json对象{"location":"canada"}我已经尝试了echo"{"location":"canada"}">> sample.json

但结果

{"name" :"sam",
"age":23,
"designation":"doctor"} {location:canada}

但我希望它像这样

{"name" :"sam",
"age":23,
"designation":"doctor", 
"location":"canada"}

请建议我

您好，下面是我的文本文件

{"Author":"john"
  "subject":"java"
  "title":"java cook book.pdf"}

{"title":"Php book.pdf"
 "Author":"Smith"
 "subject":"PHP"}

{"Author":"Smith"
"title":"Java book.pdf"}

从上面的数据我想提取所有包含“java”单词的标题，我应该得到以下输出

java cook book.pdf
Java book.pdf

请推荐我

谢谢