用shell脚本解析json

Question

Wanted to parse json :

{"FileStatus":"accessTime":1472892839430,"blockSize":134217728,"childrenNum":0,"fileId":17226,"group":"admin","length":115714,"modificationTime":1469649837471,"owner":"admin","pathSuffix":"","permission":"755","replication":2,"storagePolicy":0,"type":"FILE"}}

I tried something like this but not able to get it.

$ {"FileStatus":{"accessTime":1472892839430}} | jq '.FileStatus.accessTime'

Error:

-bash: {FileStatus:{accessTime:1472892839430}}: command not found`

Can someone help me to parse this whole json .

Answer 1

To make a command read a string on stdin in bash, use a "here string" like this:

$ jq '.FileStatus.accessTime' <<<'{"FileStatus":{"accessTime":1472892839430}}'
1472892839430

Also, you need to properly quote the text, so that bash doesn't try to interpret in some way you don't intend. When you want to preserve it literally, use single quotes ( ' ).