windows 使用 Powershell 的 UNIX 格式文件
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UNIX format files with Powershell
提问by aldrin
How do you create a unix file format in Powershell? I am using the following to create a file, but it always creates it in the windows format.
如何在 Powershell 中创建 unix 文件格式？我正在使用以下内容创建一个文件，但它总是以 windows 格式创建它。
"hello world" | out-file -filepath test.txt -append
As I understand, the new line characters CRLF make it to be a Windows format file whereas the unix format needs only a LF at the end of the line. I tried replacing the CRLF with the following, but it didn't work
据我了解，新行字符 CRLF 使其成为 Windows 格式文件，而 unix 格式只需要在行尾有一个 LF。我尝试用以下内容替换 CRLF，但没有用
"hello world" | %{ $_.Replace("`r`n","`n") } | out-file -filepath test.txt -append
采纳答案by Anders Zommarin
One ugly-looking answer is (taking input from dos.txt outputting to unix.txt):
一个难看的答案是（从 dos.txt 输出到 unix.txt 的输入）：
[string]::Join( "`n", (gc dos.txt)) | sc unix.txt
but I would really like to be able to make Set-Content do this by itself and this solution does not stream and therefore does not work well on large files...
但我真的很希望能够让 Set-Content 自己做这件事，这个解决方案不能流式传输，因此在大文件上不能很好地工作......
And this solution will end the file with a DOS line ending as well... so it is not 100%
这个解决方案也会以 DOS 行结尾来结束文件......所以它不是 100%
回答by Andy Schneider
There is a Cmdlet in the PowerShell Community Extensionscalled ConvertTo-UnixLineEnding
PowerShell Community Extensions 中有一个 Cmdlet，名为 ConvertTo-UnixLineEnding
回答by evg656e
I've found that solution:
我找到了解决方案：
sc unix.txt ([byte[]][char[]] "$contenttext") -Encoding Byte
posted above, fails on encoding convertions in some cases.
上面发布，在某些情况下编码转换失败。
So, here is yet another solution (a bit more verbose, but it works directly with bytes):
所以，这是另一个解决方案（有点冗长，但它直接适用于字节）：
function ConvertTo-LinuxLineEndings($path) {
$oldBytes = [io.file]::ReadAllBytes($path)
if (!$oldBytes.Length) {
return;
}
[byte[]]$newBytes = @()
[byte[]]::Resize([ref]$newBytes, $oldBytes.Length)
$newLength = 0
for ($i = 0; $i -lt $oldBytes.Length - 1; $i++) {
if (($oldBytes[$i] -eq [byte][char]"`r") -and ($oldBytes[$i + 1] -eq [byte][char]"`n")) {
continue;
}
$newBytes[$newLength++] = $oldBytes[$i]
}
$newBytes[$newLength++] = $oldBytes[$oldBytes.Length - 1]
[byte[]]::Resize([ref]$newBytes, $newLength)
[io.file]::WriteAllBytes($path, $newBytes)
}
