于JSON格式而言，jq就像sed/awk/grep这些神器一样的方便，而且jq没有乱七八糟的依赖，只需要一个binary文件jq，就足矣。
安装
[root@insurance ~]# yum -y install jq
Loaded plugins: fastestmirror
Setting up Install Process
Determining fastest mirrors
base | 3.7 kB 00:00
base/primary_db | 4.7 MB 00:00
epel | 3.2 kB 00:00
epel/primary | 3.2 MB 00:00
epel 12522/12522
extras | 3.4 kB 00:00
extras/primary_db | 25 kB 00:00
updates | 3.4 kB 00:00
updates/primary_db | 1.2 MB 00:00
Resolving Dependencies
--> Running transaction check
---> Package jq.x86_64 0:1.3-2.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
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Package Arch Version Repository Size
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Installing:
jq x86_64 1.3-2.el6 epel 94 k
Transaction Summary
=================================================================================================================
Install 1 Package(s)
Total download size: 94 k
Installed size: 230 k
Downloading Packages:
jq-1.3-2.el6.x86_64.rpm 