json - 如何获取 JSON 中某个键的值？

Question

这个问题已经有答案了:

Parsing JSON with Unix tools (46 个回答)

已关闭 4 年前。

我有一个 JSON 主体。我想获取“access_token”的值。我想在 bash 中使用 grep 。我使用的 grep 不起作用。

我尝试了以下操作，但它为我提供了空白结果。

HTTP_BODY=$(echo $HTTP_RESPONSE | grep ^"access_token":" ","experies_in$ )

我只想获取access_token值，即:

eyJhbGciOiJSUzI1NiIsImtpZCI6IkE4M0UwQTFEQTY1MzE0NkZENUQxOTFDMzRDNTQ0RDJDODYyMzMzMzkiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJxRDRLSGFaVEZHX1YwWkhEVEZSTkxJWWpNemsifQ.eyJuYmYiOjE1NTkzMTYzNTYsImV4cCI6MTU1OTMxOTk1NiwiaXNzIjoiaHR0cHM6Ly9jaW5jaHktbnByLmNsb3VkLnJlcy5ibmdmLmxvY2FsL2NpbmNoeXNzbyIsImF1ZCI6WyJodHRwczovL2NpbmNoeS1ucHIuY2xvdWQucmVzLmJuZ2YubG9jYWwvY2luY2h5c3NvL3Jlc291cmNlcyIsImpzX2FwaSJdLCJjbGllbnRfaWQiOiJhcGkiLCJzdWIiOiIxIiwiYXV0aF90aW1lIjoxNTU5MzE2MzU2LCJpZHAiOiJsb2NhbCIsInByb2ZpbGUiOiJBZG1pbmlzdHJhdG9yIiwiZW1haWwiOiJhZG1pbkBjaW5jaHkuY28iLCJyb2xlIjoiQ2luY2h5IFVzZXIgQWNjb3VudCIsImlkIjoiYWRtaW4iLCJzY29wZSI6WyJqc19hcGkiXSwiYW1yIjpbImN1c3RvbSJdfQ.O0--cahxPKlwHp-7fP0CMgSJTaXleupH32x7vVoxe8THVdeRIgyuZoKWPAK9p10PMO9a5Mi3N0t1Nqut5-dUS7lmeUfNKe25K1got9de7ghQ56QQXnL2SWd6g4I8Zi1R9fZsln7bZCIJvnG3_wIWHKGHBco9jEvKtO3AdYF4T9LAbdpT51SDzKPhX16BPc0Do6KfNImQpPQdK4fP3-JqxD4sOBldUg-g3aau2F_DmapEd0p5hTI4qeKgORnXJ3NadwWscQREGWVXhIRu_BF_cmEoIfPNyJI7D_L7EWn8XcFa2Gu-8khQ-WDpVUcpyidF_VHYRkMtYwpJ2dcYUaLILQ

<小时/>

输入:

HTTP_RESPONSE="{"access_token":"eyJhbGciOiJSUzI1NiIsImtpZCI6IkE4M0UwQTFEQTY1MzE0NkZENUQxOTFDMzRDNTQ0RDJDODYyMzMzMzkiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJxRDRLSGFaVEZHX1YwWkhEVEZSTkxJWWpNemsifQ.eyJuYmYiOjE1NTkzMTYzNTYsImV4cCI6MTU1OTMxOTk1NiwiaXNzIjoiaHR0cHM6Ly9jaW5jaHktbnByLmNsb3VkLnJlcy5ibmdmLmxvY2FsL2NpbmNoeXNzbyIsImF1ZCI6WyJodHRwczovL2NpbmNoeS1ucHIuY2xvdWQucmVzLmJuZ2YubG9jYWwvY2luY2h5c3NvL3Jlc291cmNlcyIsImpzX2FwaSJdLCJjbGllbnRfaWQiOiJhcGkiLCJzdWIiOiIxIiwiYXV0aF90aW1lIjoxNTU5MzE2MzU2LCJpZHAiOiJsb2NhbCIsInByb2ZpbGUiOiJBZG1pbmlzdHJhdG9yIiwiZW1haWwiOiJhZG1pbkBjaW5jaHkuY28iLCJyb2xlIjoiQ2luY2h5IFVzZXIgQWNjb3VudCIsImlkIjoiYWRtaW4iLCJzY29wZSI6WyJqc19hcGkiXSwiYW1yIjpbImN1c3RvbSJdfQ.O0--cahxPKlwHp-7fP0CMgSJTaXleupH32x7vVoxe8THVdeRIgyuZoKWPAK9p10PMO9a5Mi3N0t1Nqut5-dUS7lmeUfNKe25K1got9de7ghQ56QQXnL2SWd6g4I8Zi1R9fZsln7bZCIJvnG3_wIWHKGHBco9jEvKtO3AdYF4T9LAbdpT51SDzKPhX16BPc0Do6KfNImQpPQdK4fP3-JqxD4sOBldUg-g3aau2F_DmapEd0p5hTI4qeKgORnXJ3NadwWscQREGWVXhIRu_BF_cmEoIfPNyJI7D_L7EWn8XcFa2Gu-8khQ-WDpVUcpyidF_VHYRkMtYwpJ2dcYUaLILQ","expires_in":360,"token_type":"Bearer"}"

预期输出:

eyJhbGciOiJSUzI1NiIsImtpZCI6IkE4M0UwQTFEQTY1MzE0NkZENUQxOTFDMzRDNTQ0RDJDODYyMzMzMzkiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJxRDRLSGFaVEZHX1YwWkhEVEZSTkxJWWpNemsifQ.eyJuYmYiOjE1NTkzMTYzNTYsImV4cCI6MTU1OTMxOTk1NiwiaXNzIjoiaHR0cHM6Ly9jaW5jaHktbnByLmNsb3VkLnJlcy5ibmdmLmxvY2FsL2NpbmNoeXNzbyIsImF1ZCI6WyJodHRwczovL2NpbmNoeS1ucHIuY2xvdWQucmVzLmJuZ2YubG9jYWwvY2luY2h5c3NvL3Jlc291cmNlcyIsImpzX2FwaSJdLCJjbGllbnRfaWQiOiJhcGkiLCJzdWIiOiIxIiwiYXV0aF90aW1lIjoxNTU5MzE2MzU2LCJpZHAiOiJsb2NhbCIsInByb2ZpbGUiOiJBZG1pbmlzdHJhdG9yIiwiZW1haWwiOiJhZG1pbkBjaW5jaHkuY28iLCJyb2xlIjoiQ2luY2h5IFVzZXIgQWNjb3VudCIsImlkIjoiYWRtaW4iLCJzY29wZSI6WyJqc19hcGkiXSwiYW1yIjpbImN1c3RvbSJdfQ.O0--cahxPKlwHp-7fP0CMgSJTaXleupH32x7vVoxe8THVdeRIgyuZoKWPAK9p10PMO9a5Mi3N0t1Nqut5-dUS7lmeUfNKe25K1got9de7ghQ56QQXnL2SWd6g4I8Zi1R9fZsln7bZCIJvnG3_wIWHKGHBco9jEvKtO3AdYF4T9LAbdpT51SDzKPhX16BPc0Do6KfNImQpPQdK4fP3-JqxD4sOBldUg-g3aau2F_DmapEd0p5hTI4qeKgORnXJ3NadwWscQREGWVXhIRu_BF_cmEoIfPNyJI7D_L7EWn8XcFa2Gu-8khQ-WDpVUcpyidF_VHYRkMtYwpJ2dcYUaLILQ

Answer 1

jq -r '.access_token' file

输出:

eyJhbGciOiJSUzI1NiIsImtpZCI6IkE4M0UwQTFEQTY1MzE0NkZENUQxOTFDMzRDNTQ0RDJDODYyMzMzMzkiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJxRDRLSGFaVEZHX1YwWkhEVEZSTkxJWWpNemsifQ.eyJuYmYiOjE1NTkzMTYzNTYsImV4cCI6MTU1OTMxOTk1NiwiaXNzIjoiaHR0cHM6Ly9jaW5jaHktbnByLmNsb3VkLnJlcy5ibmdmLmxvY2FsL2NpbmNoeXNzbyIsImF1ZCI6WyJodHRwczovL2NpbmNoeS1ucHIuY2xvdWQucmVzLmJuZ2YubG9jYWwvY2luY2h5c3NvL3Jlc291cmNlcyIsImpzX2FwaSJdLCJjbGllbnRfaWQiOiJhcGkiLCJzdWIiOiIxIiwiYXV0aF90aW1lIjoxNTU5MzE2MzU2LCJpZHAiOiJsb2NhbCIsInByb2ZpbGUiOiJBZG1pbmlzdHJhdG9yIiwiZW1haWwiOiJhZG1pbkBjaW5jaHkuY28iLCJyb2xlIjoiQ2luY2h5IFVzZXIgQWNjb3VudCIsImlkIjoiYWRtaW4iLCJzY29wZSI6WyJqc19hcGkiXSwiYW1yIjpbImN1c3RvbSJdfQ.O0--cahxPKlwHp-7fP0CMgSJTaXleupH32x7vVoxe8THVdeRIgyuZoKWPAK9p10PMO9a5Mi3N0t1Nqut5-dUS7lmeUfNKe25K1got9de7ghQ56QQXnL2SWd6g4I8Zi1R9fZsln7bZCIJvnG3_wIWHKGHBco9jEvKtO3AdYF4T9LAbdpT51SDzKPhX16BPc0Do6KfNImQpPQdK4fP3-JqxD4sOBldUg-g3aau2F_DmapEd0p5hTI4qeKgORnXJ3NadwWscQREGWVXhIRu_BF_cmEoIfPNyJI7D_L7EWn8XcFa2Gu-8khQ-WDpVUcpyidF_VHYRkMtYwpJ2dcYUaLILQ

<小时/>

参见:man jq