我为你做这件事。相当直接的过程。
dos2unix filename
多亏了toolbear，这里有一个递归替换行尾并正确处理空格、引号和shell元字符的一行程序。
find . -type f -exec dos2unix {} \;
如果您使用的是dos2unix 6.0二进制文件，将被忽略。

假设您有GNU grep和perl，这将在当前目录下的非二进制文件中递归地将CRLF转换为LF：

find . -type f -exec grep -qIP '\r\n' {} ';' -exec perl -pi -e 's/\r\n/\n/g' {} '+'

它的工作原理

在当前目录下递归查找；将.更改为blog或whatev子目录以限制替换：

find .

仅匹配常规文件：

-type f

测试文件是否包含CRLF。排除二进制文件。对每个常规文件运行grep命令。这是排除二进制文件的代价。如果您有一个旧的grep，可以尝试使用file命令构建测试：

-exec grep -qIP '\r\n' {} ';'

将CRLF替换为LF。带有第二个-exec的'+'告诉find累积匹配的文件，并将它们传递给命令的一次（或尽可能少的）调用——就像管道连接到xargs一样，但如果文件路径包含空格、引号或其他shell元字符，则不会出现问题。-pi中的i告诉perl就地修改文件。您可以在这里使用sed或awk进行一些工作，您可能会将“+”更改为“；”并为每个匹配调用单独的过程：

-exec perl -pi -e 's/\r\n/\n/g' {} '+'

这里有一个更好的选择：Swiss File Knife。它在子目录中递归工作，并正确处理空格和特殊字符。
你所要做的就是：

sfk remcr -dir your_project_directory

奖励：sfk还可以进行很多其他转换。请参阅下面的完整列表：

SFK - The Swiss File Knife File Tree Processor.
Release 1.6.7 Base Revision 2 of May  3 2013.
StahlWorks Technologies, http://stahlworks.com/
Distributed for free under the BSD License, without any warranty.

type "sfk commandname" for help on any of the following.
some commands require to add "-help" for the help text.

   file system
      sfk list       - list directory tree contents.
                       list latest, oldest or biggest files.
                       list directory differences.
                       list zip jar tar gz bz2 contents.
      sfk filefind   - find files by filename
      sfk treesize   - show directory size statistics
      sfk copy       - copy directory trees additively
      sfk sync       - mirror tree content with deletion
      sfk partcopy   - copy part from a file into another one
      sfk mkdir      - create directory tree
      sfk delete     - delete files and folders
      sfk deltree    - delete whole directory tree
      sfk deblank    - remove blanks in filenames
      sfk space [-h] - tell total and free size of volume
      sfk filetime   - tell times of a file
      sfk touch      - change times of a file

   conversion
      sfk lf-to-crlf - convert from LF to CRLF line endings
      sfk crlf-to-lf - convert from CRLF to LF line endings
      sfk detab      - convert TAB characters to spaces
      sfk entab      - convert groups of spaces to TAB chars
      sfk scantab    - list files containing TAB characters
      sfk split      - split large files into smaller ones
      sfk join       - join small files into a large one
      sfk hexdump    - create hexdump from a binary file
      sfk hextobin   - convert hex data to binary
      sfk hex        - convert decimal number(s) to hex
      sfk dec        - convert hex number(s) to decimal
      sfk chars      - print chars for a list of codes
      sfk bin-to-src - convert binary to source code

   text processing
      sfk filter     - search, filter and replace text data
      sfk addhead    - insert string at start of text lines
      sfk addtail    - append string at end of text lines
      sfk patch      - change text files through a script
      sfk snapto     - join many text files into one file
      sfk joinlines  - join text lines split by email reformatting
      sfk inst       - instrument c++ sourcecode with tracing calls
      sfk replace    - replace words in binary and text files
      sfk hexfind    - find words in binary files, showing hexdump
      sfk run        - run command on all files of a folder
      sfk runloop    - run a command n times in a loop
      sfk printloop  - print some text many times
      sfk strings    - extract strings from a binary file
      sfk sort       - sort text lines produced by another command
      sfk count      - count text lines, filter identical lines
      sfk head       - print first lines of a file
      sfk tail       - print last lines of a file
      sfk linelen    - tell length of string(s)

   search and compare
      sfk find       - find words in binary files, showing text
      sfk md5gento   - create list of md5 checksums over files
      sfk md5check   - verify list of md5 checksums over files
      sfk md5        - calc md5 over a file, compare two files
      sfk pathfind   - search PATH for location of a command
      sfk reflist    - list fuzzy references between files
      sfk deplist    - list fuzzy dependencies between files
      sfk dupfind    - find duplicate files by content

   networking
      sfk httpserv   - run an instant HTTP server.
                       type "sfk httpserv -help" for help.
      sfk ftpserv    - run an instant FTP server
                       type "sfk ftpserv -help" for help.
      sfk ftp        - instant anonymous FTP client
      sfk wget       - download HTTP file from the web
      sfk webrequest - send HTTP request to a server
      sfk tcpdump    - print TCP conversation between programs
      sfk udpdump    - print incoming UDP requests
      sfk udpsend    - send UDP requests
      sfk ip         - tell own machine's IP address(es).
                       type "sfk ip -help" for help.
      sfk netlog     - send text outputs to network,
                       and/or file, and/or terminal

   scripting
      sfk script     - run many sfk commands in a script file
      sfk echo       - print (coloured) text to terminal
      sfk color      - change text color of terminal
      sfk alias      - create command from other commands
      sfk mkcd       - create command to reenter directory
      sfk sleep      - delay execution for milliseconds
      sfk pause      - wait for user input
      sfk label      - define starting point for a script
      sfk tee        - split command output in two streams
      sfk tofile     - save command output to a file
      sfk toterm     - flush command output to terminal
      sfk loop       - repeat execution of a command chain
      sfk cd         - change directory within a script
      sfk getcwd     - print the current working directory
      sfk require    - compare version text

   development
      sfk bin-to-src - convert binary data to source code
      sfk make-random-file - create file with random data
      sfk fuzz       - change file at random, for testing
      sfk sample     - print example code for programming
      sfk inst       - instrument c++ with tracing calls

   diverse
      sfk media      - cut video and binary files
      sfk view       - show results in a GUI tool
      sfk toclip     - copy command output to clipboard
      sfk fromclip   - read text from clipboard
      sfk list       - show directory tree contents
      sfk env        - search environment variables
      sfk version    - show version of a binary file
      sfk ascii      - list ISO 8859-1 ASCII characters
      sfk ascii -dos - list OEM codepage 850 characters
      sfk license    - print the SFK license text

   help by subject
      sfk help select   - how dirs and files are selected in sfk
      sfk help options  - general options reference
      sfk help patterns - wildcards and text patterns within sfk
      sfk help chain    - how to combine (chain) multiple commands
      sfk help shell    - how to optimize the windows command prompt
      sfk help unicode  - about unicode file reading support
      sfk help colors   - how to change result colors
      sfk help xe       - for infos on sfk extended edition.

   All tree walking commands support file selection this way:

   1. short format with ONE directory tree and MANY file name patterns:
      src1dir .cpp .hpp .xml bigbar !footmp
   2. short format with a list of explicite file names:
      letter1.txt revenues9.xls report3\turnover5.ppt
   3. long format with MANY dir trees and file masks PER dir tree:
      -dir src1 src2 !src\save -file foosys .cpp -dir bin5 -file .exe

   For detailed help on file selection, type "sfk help select".

   * and ? wildcards are supported within filenames. "foo" is interpreted
   as "*foo*", so you can leave out * completely to search a part of a name.
   For name start comparison, say "\foo" (finds foo.txt but not anyfoo.txt).

   When you supply a directory name, by default this means "take all files".

      sfk list mydir                lists ALL  files of mydir, no * needed.
      sfk list mydir .cpp .hpp      lists SOME files of mydir, by extension.
      sfk list mydir !.cfg          lists all  files of mydir  EXCEPT .cfg

   general options:
      -tracesel tells in detail which files and/or directories are included
                or excluded, and why (due to which user-supplied mask).
      -nosub    do not process files within subdirectories.
      -nocol    before any command switches off color output.
      -quiet    or -nohead shows less output on some commands.
      -hidden   includes hidden and system files and dirs.
      For detailed help on all options, type "sfk help options".

   beware of Shell Command Characters.
      command parameters containing characters < > | ! & must be sur-
      rounded by quotes "". type "sfk filter" for details and examples.

   type "sfk ask word1 word2 ..."   to search ALL help text for words.
   type "sfk dumphelp"              to print  ALL help text.

EDIT：一句警告：在包含二进制文件的文件夹上运行此命令时要小心，因为它会有效地破坏您的文件，尤其是.git目录。如果是这种情况，请不要在整个文件夹中运行sfk，而是选择特定的文件扩展名（.rb、.py等）。示例：sfk remcr -dir chef -file .rb -file .json -file .erb -file .md

find . -not \( -name .svn -prune -o -name .git -prune \) -type f -exec perl -pi -e 's/\r\n|\n|\r/\n/g' {} \;

这更安全，因为它可以避免损坏您的git repo。将.git、.svn添加或替换为.bzr、.hg或任何您使用的源代码控制添加到not列表中。

在OS X上，这对我很有用：

find ./ -type f -exec perl -pi -e 's/\r\n|\n|\r/\n/g' {} \;

警告：请在执行此命令之前备份目录。

以下是使用sed的解决方案：

find . -type f -exec sed -i 's/\r$//' {} \;

-i表示就地备份，如果您也要创建备份，请使用-i.bak
's/\r$//'将替换每行末尾的所有回车（\r）

将所有行尾转换为UNIX行尾（LF）

dos2unix -v *

将所有行尾转换为Windows行尾（CRLF）

unix2dos -v *

-v/--verbose开关不是必需的，但会将要转换的文件输出到控制台。
dos2unix和unix2dos都是无处不在的轻量级工具，它们默认安装在我使用过的每一个类UNIX系统上，并且它们默认跳过非文本文件，这样可以安全地在整个目录上使用。

find ./ -type f -name "*.java" -exec perl -pi -e 's/\r\n|\n|\r/\n/g' {} \;

这对我在wsl2上将所有java文件从CRLF更改为LF起到了作用