linux - AWK/SED 附加到日志文件

Question

我有一个运行的 qpid 命令，它给了我一个漂亮的 mat 打印，如下所示:

{
"value": {
    "application": {
        "connectionState": "Disconnected",
        "connectionTime": "No connection was established",
        "linkAttributes": {
            "ackSettings": {
                "dataAckEnabled": "true",
                "dataAckTimeout": "5000",
                "dataNakRetryLimit": "0",
                "retransmitDelay": "500"
            },
            "keepAliveSettings": {
                "keepAliveAckTimeout": "5000",
                "keepAliveInterval": "30000"
            },
            "logTraffic": "false",
            "port": "9999",
            "role": "server"
        },
        "protocol": "Class"
    }
},
"queueStats": {}

我获取此输出并去掉退出标记和括号，然后使用以下命令将其附加到日志文件:

command | sed 's/"//g'  | sed 's/{//g' | sed 's/}//g' | sed -e 's/$/\r/g' |awk '!/""/{ORS=(/},/?RS:""); gsub(/[[:blank:]]+/,""); sub(/}$/,"},\n"); print}' |awk '{gsub(/\\n/,"\n")}1' >> app.log

结果如下:

  ^M^M^MendpointApplications:^MApplicationSide:^MconnectionState:Disconnected,^MconnectionTime:Noconnectionwasestablished,^MlinkAttributes:^MackSettings:^MdataAckEnabled:true,^MdataAckTimeout:5000,^MdataNakRetryLimit:0,^MretransmitDelay:500^M,^MkeepAliveSettings:^MkeepAliveAckTimeout:5000,^MkeepAliveInterval:30000^M,^MlogTraffic:false,^Mport:9999,^Mrole:server^M,^Mprotocol:ClassD^M^M,^MqueueStats:^M

每次我想将输出附加到日志的新行中时，如何去掉 ^M 字符？

我的预期结果是:

    endpointApplications:ApplicationSide:connectionState:Disconnected,connectionTime:Noconnectionwasestablished,linkAttributes:ackSettings:dataAckEnabled:true,dataAckTimeout:5000,dataNakRetryLimit:0,retransmitDelay:500,keepAliveSettings:keepAliveAckTimeout:5000,keepAliveInterval:30000,logTraffic:false,port:9999,role:server,protocol:ClassD,queueStats:

基本上，结果与以前相同，但没有 ^M 字符，我想每次将命令的结果附加到新的石灰上。

Answer 1

您的 sed 命令 s/$/\r/ 正在注入(inject)它们。只是不要这样做!