对于Mac OS X，如果您安装了Homebrew (http://brew.sh/):)

brew install dos2unix

for csv in *.csv; do dos2unix -c mac ${csv}; done;

确保您已经复制了文件，因为这个命令将在适当的位置修改文件。 -c mac选项使开关与OS X兼容。

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。

一个更简单的没有程序的AWK解决方案:

awk -v ORS='\r\n' '1' unix.txt > dos.txt

从技术上讲，“1”是您的程序，因为AWK在给定选项时需要一个。

或者，内部解决方案是:

while IFS= read -r line;
do printf '%s\n' "${line%$'\r'}";
done < dos.txt > unix.txt

Use:

tr -d "\r" < file

看一下使用sed的例子:

# In a Unix environment: convert DOS newlines (CR/LF) to Unix format.
sed 's/.$//'               # Assumes that all lines end with CR/LF
sed 's/^M$//'              # In Bash/tcsh, press Ctrl-V then Ctrl-M
sed 's/\x0D$//'            # Works on ssed, gsed 3.02.80 or higher

# In a Unix environment: convert Unix newlines (LF) to DOS format.
sed "s/$/`echo -e \\\r`/"            # Command line under ksh
sed 's/$'"/`echo \\\r`/"             # Command line under bash
sed "s/$/`echo \\\r`/"               # Command line under zsh
sed 's/$/\r/'                        # gsed 3.02.80 or higher

使用sed -i进行就地转换，例如sed -i 's/..../ '文件。

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。

安装dos2unix，然后就地转换文件

dos2unix <filename>

将转换后的文本输出到不同的文件使用

dos2unix -n <input-file> <output-file>

你可以在Ubuntu或Debian上安装它

sudo apt install dos2unix

或者在macOS上使用Homebrew

brew install dos2unix