我在shell中有以下變數

{
  "type": "service_account",
  "project_id": "projectid234",
  "private_key_id": "aasdadsxzce5",
  "private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----END PRIVATE KEY-----\n",
  "client_email": "[email protected]",
  "client_id": "1234242342341",
  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
  "token_uri": "https://oauth2.googleapis.com/token",
  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com"
}

如下所示：

export var1='{
      "type": "service_account",
      "project_id": "projectid234",
      "private_key_id": "aasdadsxzce5",
      "private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----END PRIVATE KEY-----\n",
      "client_email": "[email protected]",
      "client_id": "1234242342341",
      "auth_uri": "https://accounts.google.com/o/oauth2/auth",
      "token_uri": "https://oauth2.googleapis.com/token",
      "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
      "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com"
    }'

現在我想將它轉換為單行，我該怎么辦？我嘗試了各種解決方案，但沒有奏效。例如，我使用了下面找到的代碼，但在轉換為 base64 并對其進行解碼后，它只回傳第一行。你介意幫助我嗎？

$((echo $var1 | tr -d '\n') | base64)

uj5u.com熱心網友回復：

由于您正在處理 JSON，我建議您使用類似的工具jq，它為我們提供了--compact-output選項，并且能夠使用 Base64 編碼@base64

到單行輸出

jq --compact-output '' <<< "$test"

轉Base64單線輸出

jq --compact-output  '@base64' <<< "$test"

轉Base64單行輸出，用bash解碼

jq --compact-output --raw-output '@base64' <<< "$test" | base64 --decode

注意--raw-output洗掉""'s 。

上述行的本地 shell 示例：

$ test='{
  "type": "service_account",
  "project_id": "projectid234",
  "private_key_id": "aasdadsxzce5",
  "private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----END PRIVATE KEY-----\n",
  "client_email": "[email protected]",
  "client_id": "1234242342341",
  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
  "token_uri": "https://oauth2.googleapis.com/token",
  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com"
}'
$
$ jq --compact-output '' <<< "$test"
{"type":"service_account","project_id":"projectid234","private_key_id":"aasdadsxzce5","private_key":"-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----END PRIVATE KEY-----\n","client_email":"[email protected]","client_id":"1234242342341","auth_uri":"https://accounts.google.com/o/oauth2/auth","token_uri":"https://oauth2.googleapis.com/token","auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs","client_x509_cert_url":"https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com"}
$
$
$ jq --compact-output '@base64' <<< "$test"
"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"
$
$
$ jq --compact-output --raw-output '@base64' <<< "$test" | base64 --decode
{"type":"service_account","project_id":"projectid234","private_key_id":"aasdadsxzce5","private_key":"-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----END PRIVATE KEY-----\n","client_email":"[email protected]","client_id":"1234242342341","auth_uri":"https://accounts.google.com/o/oauth2/auth","token_uri":"https://oauth2.googleapis.com/token","auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs","client_x509_cert_url":"https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com"}%
$
$

uj5u.com熱心網友回復：

不確定我是否理解使用，base64但一個簡單的tr應該可以作業，例如：

$ var2=$(echo ${var1} | tr -d '\n')              # ${var1} is not wrapped in double quotes so repetitive white space is squeezed to single spaces

$ echo "${var2}"
{ "type": "service_account", "project_id": "projectid234", "private_key_id": "aasdadsxzce5", "private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----END PRIVATE KEY-----\n", "client_email": "[email protected]", "client_id": "1234242342341", "auth_uri": "https://accounts.google.com/o/oauth2/auth", "token_uri": "https://oauth2.googleapis.com/token", "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs", "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com" }

或者正如 William Pursell 在評論中指出的那樣，不要${var1}用引號括起來，您也可以取消od呼叫：

$ var2=$(echo ${var1})                           # the unquoted ${var1} also removes linefeeds so no need for tr

$ echo "${var2}"
{ "type": "service_account", "project_id": "projectid234", "private_key_id": "aasdadsxzce5", "private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----END PRIVATE KEY-----\n", "client_email": "[email protected]", "client_id": "1234242342341", "auth_uri": "https://accounts.google.com/o/oauth2/auth", "token_uri": "https://oauth2.googleapis.com/token", "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs", "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com" }

或者，如果您希望保留所有額外的空白，您可以${var1}在傳遞給之前用雙引號括起來tr，例如：

$ var2=$(echo "${var1}" | tr -d '\n')            # ${var1} is wrapped in double quotes to maintain all white space

$ echo "${var2}"
{      "type": "service_account",      "project_id": "projectid234",      "private_key_id": "aasdadsxzce5",      "private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----END PRIVATE KEY-----\n",      "client_email": "[email protected]",      "client_id": "1234242342341",      "auth_uri": "https://accounts.google.com/o/oauth2/auth",      "token_uri": "https://oauth2.googleapis.com/token",      "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",      "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com"    }

uj5u.com熱心網友回復：

就像快速通過一樣，您真的應該能夠通過bash.

最簡單的：

$: echo "$var1" # this should present it exactly as you saved it
{
      "type": "service_account",
      "project_id": "projectid234",
      "private_key_id": "aasdadsxzce5",
      "private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----END PRIVATE KEY-----\n",
      "client_email": "[email protected]",
      "client_id": "1234242342341",
      "auth_uri": "https://accounts.google.com/o/oauth2/auth",
      "token_uri": "https://oauth2.googleapis.com/token",
      "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
      "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com"
    }

$: echo "${var1//$'\n'/}" # this should strip out the newlines
{      "type": "service_account",      "project_id": "projectid234",      "private_key_id": "aasdadsxzce5",      "private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----END PRIVATE KEY-----\n",      "client_email": "[email protected]",      "client_id": "1234242342341",      "auth_uri": "https://accounts.google.com/o/oauth2/auth",      "token_uri": "https://oauth2.googleapis.com/token",      "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",      "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com"    }

假設您還想用更復雜的模式擠出無關的空白，您可能會想使用正則運算式......這是行不通的，因為引數決議實際上使用了 w globbing，但正則運算式本身......但嘗試shopt對于擴展通配符 -

$: shopt -s extglob # c.f. https://mywiki.wooledge.org/glob#extglob
$: echo "${var1//$'\n' ( )/}" # remove a newline followed by one or more spaces
{"type": "service_account","project_id": "projectid234","private_key_id": "aasdadsxzce5","private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----END PRIVATE KEY-----\n","client_email": "[email protected]","client_id": "1234242342341","auth_uri": "https://accounts.google.com/o/oauth2/auth","token_uri": "https://oauth2.googleapis.com/token","auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs","client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com"}

編輯

有空格：這更改-----BEGIN PRIVATE KEY-----為-----BEGINPRIVATEKEY-----，我只是錯過了它。

由于您的資料中似乎沒有嵌入空格（我注意到了），您可以取消在它們前面換行的要求，并洗掉所有空格以進一步壓縮它。

$: echo "${var1//*($'\n') ( )/}"
{"type":"service_account","project_id":"projectid234","private_key_id":"aasdadsxzce5","private_key":"-----BEGINPRIVATEKEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----ENDPRIVATEKEY-----\n","client_email":"[email protected]","client_id":"1234242342341","auth_uri":"https://accounts.google.com/o/oauth2/auth","token_uri":"https://oauth2.googleapis.com/token","auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs","client_x509_cert_url":"https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com"}

同樣，這更改-----BEGIN PRIVATE KEY-----為-----BEGINPRIVATEKEY-----

所以......在這種情況下，沒有嵌入的空格，您可以通過使用 POSIX 字符類來洗掉所有空格，就像在頂部一樣，完全不需要擴展 globbing 就可以獲得最佳結果。:)

$: echo "${var1//[[:space:]]/}" # // means global replacement
{"type":"service_account","project_id":"projectid234","private_key_id":"aasdadsxzce5","private_key":"-----BEGINPRIVATEKEY-----\nMIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCiWjA5 xF6gsGC\nOknIL9DOCQpV2LRXYPEKl5 mXuN45vwqh6QvG4lw/Hi7EJhtAn FQy7 yOQYrw3l\nQ2CpxDotT PT2OuQ6LVbc/F SblPlrK3B 8aEMo57PZ gnwMcQ7 ofPnzC635uUP\npOG0idMTK\n-----ENDPRIVATEKEY-----\n","client_email":"[email protected]","client_id":"1234242342341","auth_uri":"https://accounts.google.com/o/oauth2/auth","token_uri":"https://oauth2.googleapis.com/token","auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs","client_x509_cert_url":"https://www.googleapis.com/robot/v1/metadata/x509/assadjashd.iam.gserviceaccount.com"}

轉載請註明出處，本文鏈接：https://www.uj5u.com/gongcheng/512828.html

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