如何在 sed、awk 或其他任何程序中编辑以下行

Question

如何在 sed、awk 或其他任何程序中编辑以下行：

root@laptop002:/tmp# cat /tmp/log
2016-03-01 06:08:26     {"id":"778640","cuid":"1","msid":"199033","lid":"582","Started":"1","qid":"9401"}  batch is running

使其看起来像下面这样：

2016-03-01 06:08:26     "msid":"199033"  batch is running

或

2016-03-01 06:08:26     msid is 199033  batch is running

或

2016-03-01 06:08:26     msid=199033  batch is running

Answer 1

$ awk -F'[{,}]' '{print , , $NF}' file
2016-03-01 06:08:26      "msid":"199033"   batch is running

Answer 2

最安全的方法是使用 json 解析器解析 json 字符串，例如 JSON:

use strict;
use warnings;
use JSON;

my $str = '2016-03-01 06:08:26     {"id":"778640","cuid":"1","msid":"199033","lid":"582","Started":"1","qid":"9401"}  batch is running';
my ($date, $time, $json, $msg) = split ' ', $str, 4;
my $hash = decode_json($json);
print join " ", $date, $time, "msid=" . $hash->{msid}, $msg;

输出：

2016-03-01 06:08:26 msid=199033 batch is running

如何在 sed、awk 或其他任何程序中编辑以下行

how to edit following line in sed, awk or anything else

regex

perl

awk

sed

gawk