mongo_Linux下不进入数据库查数据

如果mongo中存在表 db.NotificationEvent :  数据如下

{
    "_id" : ObjectId("5dba4f650088f730f5dd6083"),
    "status" : 1,
    "checked_remark" : "",
    "infosecurity" : 10,
    "create_date" : 1572451200,
    "description" : "主机访问了XCodeGhost病毒通信域名",
    "accepted_at" : 0,
    "dispatch_date" : 0,
    "hole_id" : "",
    "dealt_at" : 0,
    "infosecuritysub" : 113,
    "deal_duration" : 0,
    "rejected_remark" : "",
    "found_at" : 1572490877,
    "dealt_remark" : "",
    "expired_at" : 0,
   
}

　　/mongodb/bin/mongo  --port 27017 --eval 'db.NotificationEvent.find({"found_at" : 1572490877},{_id:0, description:1})'  数据库名    | grep -vE '(MongoDB|127.0.0.1|UUID)' 

则显示出: 

{"description" : "主机访问了XCodeGhost病毒通信域名"}

如果要显示    "主机访问了XCodeGhost病毒通信域名"  则可以在后面加上切片   过滤 | cut -c  21-44

/mongodb/bin/mongo  --port 27017 --eval 'db.NotificationEvent.find({"found_at" : 1572490877},{_id:0, description:1})'  数据库名    | grep -vE '(MongoDB|127.0.0.1|UUID)' | cut -c  21-44