使用AWK你可以做到:

awk '{ sub("\r$", ""); print }' dos.txt > unix.txt

使用Perl你可以做到:

perl -pe 's/\r$//' < dos.txt > unix.txt

如果您没有访问dos2unix的权限，但是可以阅读这个页面，那么您可以从这里复制/粘贴dos2unix.py。

#!/usr/bin/env python
"""\
convert dos linefeeds (crlf) to unix (lf)
usage: dos2unix.py <input> <output>
"""
import sys

if len(sys.argv[1:]) != 2:
  sys.exit(__doc__)

content = ''
outsize = 0
with open(sys.argv[1], 'rb') as infile:
  content = infile.read()
with open(sys.argv[2], 'wb') as output:
  for line in content.splitlines():
    outsize += len(line) + 1
    output.write(line + '\n')

print("Done. Saved %s bytes." % (len(content)-outsize))

(超级用户交叉发布。)

这对我很有效

tr "\r" "\n" < sampledata.csv > sampledata2.csv 

蒂姆托维迪！

perl -pe 's/\r\n/\n/; s/([^\n])\z/$1\n/ if eof' PCfile.txt

根据戈登·戴维森的回答。

人们必须考虑到……的可能性。

这个问题可以用标准工具解决，但对于粗心的人来说，有很多陷阱，我建议您安装flip命令，这是20多年前由《zoo》的作者Rahul Dhesi编写的。 它在转换文件格式方面做得很出色，例如，避免了二进制文件的无意破坏，如果您只是到处更改您看到的每个CRLF，这有点太容易了……

The solutions posted so far only deal with part of the problem, converting DOS/Windows' CRLF into Unix's LF; the part they're missing is that DOS use CRLF as a line separator, while Unix uses LF as a line terminator. The difference is that a DOS file (usually) won't have anything after the last line in the file, while Unix will. To do the conversion properly, you need to add that final LF (unless the file is zero-length, i.e. has no lines in it at all). My favorite incantation for this (with a little added logic to handle Mac-style CR-separated files, and not molest files that're already in unix format) is a bit of perl:

perl -pe 'if ( s/\r\n?/\n/g ) { $f=1 }; if ( $f || ! $m ) { s/([^\n])\z/$1\n/ }; $m=1' PCfile.txt

注意，这将把文件的统一版本发送到标准输出。如果你想用一个统一的版本替换这个文件，添加perl的-i标志。