C# - 使用 Tectia 将文件从 Windows 传输到 unix 时如何删除 ctrl M 字符？
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C# - how to remove ctrl M characters when transferring files from windows to unix using Tectia?
提问by Ravi Goklani
In a C# module, I want to transfer files from Windows to Unix using Tectia. But the problem is when these files are transferred(Ascii or Binary mode both) and opened using VI editor we get ^M characters. I searched about this but the solutions are to remove these ^M characters after the files are transferred using utilites. Is there any way that these ^M characters do not appear in the first place. Is there any option to have a workaround in code before sending these files?
在 C# 模块中，我想使用 Tectia 将文件从 Windows 传输到 Unix。但问题是当这些文件被传输（Ascii 或二进制模式）并使用 VI 编辑器打开时，我们得到 ^M 字符。我对此进行了搜索，但解决方案是在使用实用程序传输文件后删除这些 ^M 字符。有什么办法可以使这些 ^M 字符首先不出现。在发送这些文件之前，是否有任何选项可以在代码中解决方法？
采纳答案by Ravi Goklani
Thanks for all the help everyone. I solved this problem using a workaround. Windows uses CR+LF (\r\n) as end-of-line & Unix uses LF (\n) as end-of-line.I took the Windows file and replaced the occurrence of CR+LF(\r\n) with LF(\n) in code itself without any utility.This made the file compatible for Unix systems and then I transferred the file using SFTP and it worked on Unix without ^M characters.
谢谢各位的帮助。我使用一种解决方法解决了这个问题。Windows 使用 CR+LF (\r\n) 作为行尾 & Unix 使用 LF (\n) 作为行尾。我拿了 Windows 文件并替换了 CR+LF(\r\n ) 与 LF(\n) 代码本身没有任何实用程序。这使文件与 Unix 系统兼容，然后我使用 SFTP 传输文件，它在没有 ^M 字符的 Unix 上工作。
回答by alfasin
回答by Quetzalcoatl
Try executing the following in your terminal (may need to install it first):
尝试在终端中执行以下操作（可能需要先安装）：
fromdos <your-file>
回答by Vinoth
One more trick to remove Ctrl+Min vi editor:
在 vi 编辑器中删除Ctrl+ 的另一个技巧M：
:%s/^V^M//g
For more trick to remove Ctrl+Mcharacters
回答by Lakshminarayanan
:%s/^V^M//
gnot needed at all.%s- find and replace text that u want to replace^V^Mto be replaced with "should be after double slash" keep it empty if you want to replace with nothing
g根本不需要。%s- 查找并替换您要替换的文本^V^M被替换为“应该在双斜线之后”如果你想什么都不替换，请将其留空
回答by Rajesh
How I was able to remove it in vi editor:
我是如何在 vi 编辑器中删除它的：
- After
:%s/then press ctrl+Vthen ctrl+M. This will give you^M - Then
//g(will look like::%s/^M) press Entershould get all removed.
- 之后
:%s/再按下 ctrl+V则ctrl+ M。这会给你^M - 然后
//g（看起来像:%s/^M：）按下Enter应该被全部删除。
Good luck!
祝你好运！
回答by Akshay
Try
尝试
tr -d '5' <INPUT_FILE > OUTPUT_FILE
回答by JellicleCat
If you just need to remove the ^Mcharacters (not replace them with \n):
如果您只需要删除^M字符（而不是用 替换它们\n）：
sed -i -e 's/\r//g' yourfile.txt
If you want to replace them with \n:
如果您想将它们替换为\n：
sed -i -e 's/\r/\n/g' yourfile.txt
回答by Niket
tr '\015' '\n' < /tmp/file-with-ctrlm.txt > /tmp/no-ctrlm.txt
tr '\015' '\n' < /tmp/file-with-ctrlm.txt > /tmp/no-ctrlm.txt
- This command uses ASCII code of CtrlM and replaces all CtrlM with newline characters.
- It avoids Ctrl-V, Ctrl-M, and works on Mac too.
- 此命令使用 CtrlM 的 ASCII 代码并用换行符替换所有 CtrlM。
- 它避免了 Ctrl-V、Ctrl-M，并且也适用于 Mac。
回答by RmccurdyDOTcom
For me this is the only thing that would work .. not unix2dos or anything ...
对我来说，这是唯一可行的方法......不是 unix2dos 或任何东西......
sed -e 's/\x0D//g'
sed -e 's/\x0D//g'
reference:
参考：
The hexadecimal 0a, a control character as opposed to a printing character, is called a line feed.
十六进制 0a 是与打印字符相对的控制字符，称为换行符。
The hexadecimal 0d is called a carriage return.
十六进制的 0d 称为回车。
