更换返回字符内，以＆＃的xD
问题描述：
我有一个文件PKCS10请求，我需要换行字符为“ ”更换返回字符内，以＆＃的xD
实例转换的文件中：
-----BEGIN NEW CERTIFICATE REQUEST-----
MIIC2zCCAcMCAQAwcjELMAkGA1UEBhMCVVMxEDAOBgNVBAoTB1JlZCBIYXQxDjAM
BgNVBAsTBVFFSURNMQswCQYDVQQLEwJRRTENMAsGA1UECxMEUkhTUzEVMBMGCgmS
JomT8ixkAQETBXRlc3Q2MQ4wDAYDVQQDEwV0ZXN0NjCCASIwDQYJKoZIhvcNAQEB
BQADggEPADCCAQoCggEBALQULllI/JMudcBHeykXe7wRmAZlcxxQK7pvw1hNqt/I
Lz4XdZJ9pZVHCSmeR3ubsriRbbqhM2ZjiH+Rb2mLxCgrVlqvBEZ5qj6yQhhiWaFL
wNIGFhGHqFt/HeDxDvuLumZVH34VDGZoIoPLVMtVspHG5kxKHEsivWMvkkUnrbJF
X8Bdsfhzg/7pObkZtaUrg9tjXRCU+hrPnodfUgZ8IxzWcaaKFs7c4f6QjFOsDCQz
8TxuiF5gDbWbXlpVRnEtofpMZrtnxYe92Sepi83kduZ9aWyZMFNND8HWl9zpjwy3
uFUrs+R+S8zRM3tww92CuCgsaA+fjftlFKnIXaAl7dkCAwEAAaAkMCIGCCsGAQUF
BwcXMRYEFOZpyV8u/6SQrnPmRMw/nh2Wd5xQMA0GCSqGSIb3DQEBBAUAA4IBAQCm
djxD+5NJqFIKKWaVEq3QNDwqNiD/j+bi7EyDPquwBfgpp1VZmOty99muStG2GfvE
1tg7ZdcebDHZ5umIw//3StxTODVkUYIkYzWERdt3GZe3TJqdGDeWMkOtCQR0fMjs
X1TN0m1BEKS1tKoMJWJagCLvsqr2C+LMw4gB/r/Tq+KUvacM+yv7x0ROgRKa6aiW
/ja2vox3uWUMUMKYbz8km5UrqnaSBVDvDIt8yt9X5k+2sgl37MsWzyKBnpwH7mKX
5Z8vj9C8F3Iq0L6qWQdqCY74nm/jyI4roUQpDoS+xeQxKh6mn8IbX2HisGwSoJyM
w8jfHjDvXxRi0RyBlBNR
--- --END NEW CERTIFICATE REQUEST -----
我想上述改变为下面的格式：
-----BEGIN NEW CERTIFICATE REQUEST-----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-----END NEW CERTIFICATE REQUEST----
Linux上的xed或xml工具等任何工具都可以实现上述功能。
答
你可以使用sed：
sed ':a;N;$!ba;s/\n/\
&/g' filename
对于保存更改就地输入文件，添加-i选项。
您的输入，这将产生：
-----BEGIN NEW CERTIFICATE REQUEST-----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-----END NEW CERTIFICATE REQUEST-----
答
sed '$ !s/$/\
/' YourFile
或
sed '$ !s/[[:blank:]]*$/\
/' YourFile
是不够的？
*“我想将上面的内容更改为下面的格式”* - 您当然不希望这样做。你愿意解释为什么你认为这是必要的吗？ – Tomalak
我必须生成一个pkcs10请求，并以xml格式提供请求，因为我使用的pki服务器会将请求置于xml文件中 – mrashok
为什么您觉得更改会有问题？ – mrashok