将JSON打印转换为一行

我运行了一个命令，它给出如下输出：

{
"endpointApplications": {
    "App_Name": {
        "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": "snmp"
    }
},
"queueStats": {}
}

{"endpointApplications": {"app_name": {"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": "snmp"}},"queueStats":{}}

我需要输出在一行中，如下所示：

{
"endpointApplications": {
    "App_Name": {
        "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": "snmp"
    }
},
"queueStats": {}
}

{"endpointApplications": {"app_name": {"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": "snmp"}},"queueStats":{}}

我尝试使用awk和sed组合不同的参数，但如果不丢失JSON格式，我就无法开始工作

您应该使用以下内容：

jq -c . input.txt

另一种快速解决方案是使用

sed

&

tr

：

sed -e 's/^ *//' < input.txt | tr -d '\n'

sed-e's/^*/'

---

尽管我建议使用

jq

，它是为处理JSON而设计的

jq

类似于JSON的sed。使用

sed

/

awk

/etc以文本方式操作JSON不能保证生成语义等价的JSON。

jq

或任何其他

JSON

感知工具最适合JSON文件操作。不过，这里有一个基于

awk

的解决方案

awk -v RS= '{$1=$1}1' input.json
{ "endpointApplications": { "App_Name": { "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": "snmp" } }, "queueStats": {} }

---

注意：此解决方案主要适用于没有像

jq

这样的工具的遗留系统，并且由于某些原因没有机会安装它们。

考虑使用

jq

来完成您对每一行的操作：）您可以在Debian风格的Linux（如Ubuntu）下获得

jq

使用简单的

sudo apt获得安装jq