现有的答案指出curl可以从文件中发布数据，并使用heredocs来避免过多的引号转义，并清楚地将JSON分离到新的行。然而，不需要定义函数或从cat获取输出，因为curl可以发布来自标准输入的数据。我觉得这个表格很有可读性:

curl -X POST -H 'Content-Type:application/json' --data '$@-' ${API_URL} << EOF
{
  "account": {
    "email": "$email",
    "screenName": "$screenName",
    "type": "$theType",
    "passwordSettings": {
      "password": "$password",
      "passwordConfirm": "$password"
    }
  },
  "firstName": "$firstName",
  "lastName": "$lastName",
  "middleName": "$middleName",
  "locale": "$locale",
  "registrationSiteId": "$registrationSiteId",
  "receiveEmail": "$receiveEmail",
  "dateOfBirth": "$dob",
  "mobileNumber": "$mobileNumber",
  "gender": "$gender",
  "fuelActivationDate": "$fuelActivationDate",
  "postalCode": "$postalCode",
  "country": "$country",
  "city": "$city",
  "state": "$state",
  "bio": "$bio",
  "jpFirstNameKana": "$jpFirstNameKana",
  "jpLastNameKana": "$jpLastNameKana",
  "height": "$height",
  "weight": "$weight",
  "distanceUnit": "MILES",
  "weightUnit": "POUNDS",
  "heightUnit": "FT/INCHES"
}
EOF

使用https://httpbin.org/和内联bash脚本测试的解决方案 1. 对于没有空格的变量，即1: 只需添加'之前和之后$变量替换所需 字符串

for i in {1..3}; do \
  curl -X POST -H "Content-Type: application/json" -d \
    '{"number":"'$i'"}' "https://httpbin.org/post"; \
done

2. 对于带空格的输入: 用额外的“即”来包装变量。“el”:

declare -a arr=("el a" "el b" "el c"); for i in "${arr[@]}"; do \
  curl -X POST -H "Content-Type: application/json" -d \
    '{"elem":"'"$i"'"}' "https://httpbin.org/post"; \
done

哇工作:)

现有的答案指出curl可以从文件中发布数据，并使用heredocs来避免过多的引号转义，并清楚地将JSON分离到新的行。然而，不需要定义函数或从cat获取输出，因为curl可以发布来自标准输入的数据。我觉得这个表格很有可读性:

curl -X POST -H 'Content-Type:application/json' --data '$@-' ${API_URL} << EOF
{
  "account": {
    "email": "$email",
    "screenName": "$screenName",
    "type": "$theType",
    "passwordSettings": {
      "password": "$password",
      "passwordConfirm": "$password"
    }
  },
  "firstName": "$firstName",
  "lastName": "$lastName",
  "middleName": "$middleName",
  "locale": "$locale",
  "registrationSiteId": "$registrationSiteId",
  "receiveEmail": "$receiveEmail",
  "dateOfBirth": "$dob",
  "mobileNumber": "$mobileNumber",
  "gender": "$gender",
  "fuelActivationDate": "$fuelActivationDate",
  "postalCode": "$postalCode",
  "country": "$country",
  "city": "$city",
  "state": "$state",
  "bio": "$bio",
  "jpFirstNameKana": "$jpFirstNameKana",
  "jpLastNameKana": "$jpLastNameKana",
  "height": "$height",
  "weight": "$weight",
  "distanceUnit": "MILES",
  "weightUnit": "POUNDS",
  "heightUnit": "FT/INCHES"
}
EOF

几年之后，如果你使用eval或backtick替换，这可能会帮助到一些人:

postDataJson="{\"guid\":\"$guid\",\"auth_token\":\"$token\"}"

使用sed从响应的开头和结尾去掉引号

$(curl --silent -H "Content-Type: application/json" https://${target_host}/runs/get-work -d ${postDataJson} | sed -e 's/^"//' -e 's/"$//')

Curl可以从文件中发布二进制数据，所以我一直在使用进程替换和利用文件描述符，每当我需要发布一些讨厌的Curl，仍然想要访问当前shell中的vars。喜欢的东西:

curl "http://localhost:8080" \
-H "Accept: application/json" \
-H "Content-Type:application/json" \
--data @<(cat <<EOF
{
  "me": "$USER",
  "something": $(date +%s)
  }
EOF
)

这看起来像——data @/dev/fd/<some number>，这就像一个正常的文件一样被处理。不管怎样，如果你想看到它在本地工作，只要先运行nc -l 8080，然后在不同的shell中发射上面的命令。你会看到如下内容:

POST / HTTP/1.1
Host: localhost:8080
User-Agent: curl/7.43.0
Accept: application/json
Content-Type:application/json
Content-Length: 43

{  "me": "username",  "something": 1465057519  }

正如你所看到的，你可以在heredoc中调用subshell和引用变量。黑客希望这有助于与快乐 '"'"'""""'''""''.

来自Athos爵士的信息非常有效!!

下面是我如何在我的curl脚本为couchDB使用它。这真的很有帮助 经常出去。谢谢!

bin/curl -X PUT "db_domain_name_:5984/_config/vhosts/$1.couchdb" -d '"/'"$1"'/"' --user "admin:*****"