Question

您好我有一个由行组成的json文件，其中每行包含类似的内容：

[{“user1”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7},{“user2”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7},{“user3”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7}]

（全部在同一行）

我想创建一个文件，其中每一行都是这样的（每行一个用户）：

{“user1”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7}
{“user2”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7}
{“user3”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7}

我该怎么做？

Answer 1

这应该有效，用换行符和,{替换,{，并从第二个到倒数第二个字符获取子字符串。

awk '{ gsub(",{","\n{"); {print substr($0, 2, length($0) - 2)} }' file

Answer 2

编辑新版问题输入：

sed -e 's/^\[//' -e 's/]$/}/' -e 's/,{/}\n{/g'

它不那么漂亮（虽然你真的只需要最后一点 - 前两个s/只是为了整理开始/结束[,]

$ echo '[{“user1”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7},{“user2”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7},{“user3”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7}]' | sed -e 's/^\[//' -e 's/]$/}/' -e 's/,{/}\n{/g'
{“user1”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7}}
{“user2”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7}}
{“user3”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7}}

Answer 3

在我看来，输入是JSON（或兼容），尽管您没有说明刚刚命名为value的部分的具体值。我为这些42中的每一个假设了value，然后使用适当的JSON解析来实现您想要的。我选择的解析器是Python JSON库，但其他解析器当然也可以工作。

我冒昧地修改输入。有几个关闭的大括号丢失了。

结果并不是你要求的格式，但是因为缺少右括号（我对你的问题发表了评论），你要求的语法是无意义的，我假设输出格式不是那么固定。无论如何，复杂的部分是正确的解析;输出然后很简单。

echo '[{"key1":{"key2":"value","key2":[{"key3":42,"key4":"value"}],"key5":42}},{"key1":{"key2":"value","key2":[{"key3":42,"key4":"value"}],"key5":42}},{"key1":{"key2":"value","key2":[{"key3":42,"key4":"value"}],"key5":42}},{"key1":{"key2":"value","key2":[{"key3":42,"key4":"value"}],"key5":42}}]' \
  | python -c 'import json, sys; v=json.load(sys.stdin); print "\n".join(str(x) for x in v)'

Answer 4

对于给定的输入，这将执行：

sed -re 's/(\{"key1)/\n\1/g' | sed -re '/^\[/ d'

但是，正如Alfe所说，你有更多的左括号而不是右括号。另外一个json解析器将是一个更好的答案。

Answer 5

您可以将输入传递给perl -ple 's|({“user)|\n$1|g' |sed -re 's/^\[|\]$//g' | sed -re '/^$/ d'：

 echo '[{“user1”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7},{“user2”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7},{“user3”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7}]' | perl -ple 's|({“user)|\n$1|g' |sed -re 's/^\[|\]$//g' | sed -re '/^$/ d'
{“user1”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7},
{“user2”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7},
{“user3”:{“key1”:”value”,”key2”:”value2”,”key3”:[{“key4”:”value4”,”key5”:”value5”}],”key6”:”value6”},”key7”:”value7}

PS。一个json解析器仍然是一个更好的答案：）

bash根据条件将一行文件拆分为多行

5 个答案: