grep和awk的简单使用之旅

一个自己的记录
计算出格式化后的json数据中，nowStepNum>2000的总和

用到了查找grep、awk分割-F、awk 求和sum，管道|

cat run | grep '"nowStepNum"' | awk -F': ' '{print $2}' | awk -F',' '{print $1}' | awk '{if ($1 > 2000) {print $1}}' | awk '{sum += $1};END {print sum}'

grep '"nowStepNum"'：找到了"nowStepNum"这些行，_____"nowStepNum": 6167,
awk -F': ' '{print $2}'：使用:_冒号和空格分割，取第2个6167,
awk -F',' '{print $1}'：使用,逗号分割，取第1个6167
awk '{if ($1 > 2000) {print $1}}'：取所有>2000的数
awk '{sum += $1};END {print sum}'：求和

run文件

[
    {
        "donateId": "e65182ebb7ce48f2ad0bc4dc98885f40",
        "donationCredit": 200,
        "donationDate": "2021-09-02 23:41:07",
        "donationDateDay": "2021-09-02",
        "guid": "a343894bf5544df4898d1345b956fd79",
        "nowStepNum": 6167,
        "userId": "846d5795529845cd8481a5edcee2614a",
        "wishId": "d85f17bc9a3c4462a8d22f227e1109e9",
        "wishTitle": "xxxxxxxxxx"
    },
    {
        "donateId": "80ed1113dffa4174a2b6723efb2828e8",
        "donationCredit": 60,
        "donationDate": "2021-09-02 00:00:25",
        "donationDateDay": "2021-09-02",
        "guid": "1de23200865243f291df65db32b35a5c",
        "nowStepNum": 4,
        "userId": "846d5795529845cd8481a5edcee2614a",
        "wishId": "3b0e65d098f6427d8869f1d82e4f922d",
        "wishTitle": "xxxxxxxxxx"
    },
    {
        "donateId": "196defe9523d405e915d64b73e6c107b",
        "donationCredit": 200,
        "donationDate": "2021-09-01 20:52:12",
        "donationDateDay": "2021-09-01",
        "guid": "1dd02519c4564a8587c6f3c4a080ca9e",
        "nowStepNum": 5975,
        "userId": "846d5795529845cd8481a5edcee2614a",
        "wishId": "d85f17bc9a3c4462a8d22f227e1109e9",
        "wishTitle": "xxxxxxxxxx"
    }
]