linux shell 修改文件内容

 

原文件：daemon.json

{
     "registry-mirrors": [
          "http://mirror.local"
     ],
     "insecure-registries": [
          "xxx"
     ],
     "mtu": 1360,
     "bip": "192.168.1.1/24"
}

需求

把insecure-registries的值修改为 yyy

sed -i "s/xxx/yyy/g" ./daemon.json

修改后的文件

{
     "registry-mirrors": [
          "http://mirror.local"
     ],
     "insecure-registries": [
          "yyy"
     ],
     "mtu": 1360,
     "bip": "192.168.1.1/24"
}