dos2unix命令 [英] dos2unix command

问题描述

我有这个脚本

#!/bin/sh
for i in `ls -R`
do
  echo "Changing $i"
  fromdos $i 
done

我想从更多子目录中的许多文件中删除"^ M"字符.我知道了:

I want to remove "^M" charcaters from many files which are in more subdirectories. I got this:

fromdos: Unable to access file

我有什么想念的吗?

提前谢谢.

推荐答案

我想您不需要 for 循环.

这是扩展名为".ext"的文件的解决方案的快速概览(此类命令应具有限制性)

Here is a quick panorama of solutions for files with extension ".ext" (such commands shall be somehow restrictive)

注意:^ M是通过CTRL-V"+" CTRL-M获得的

note : ^M is obtained with CTRL-V" + "CTRL-M"

# PORTABLE SOLUTION 
find /home -type f -name "*.ext" -exec sed -i -e 's/^M$//' {} \;

# GNU-sed
find /home -type f -name "*.ext" -exec sed -i -e "s/\x0D$//g" {} \;

# SED with more recent nux
find /home -type f -name "*.ext" -exec sed -i -e "s/\r$//g" {} \;

# DOS2UNIX
find /home -type f -name "*.ext" -print0 | while read -r -d "$(printf "\000")" -r path; do dos2unix $path $path"_new"; done

# AWK
 find /home -type f -name "*.ext" -print0 | while read -r -d "$(printf "\000")" -r path; do awk '{ sub("\r$", ""); print }' $path > $path"_new"; done

# TR
 find /home -type f -name "*.ext" -print0 | while read -r -d "$(printf "\000")" -r path; do cat $path | tr -d '\r' > $path"_new"; done

# PERL
 find /home -type f -name "*.ext" -exec perl -pi -e 's/\r//g' {} \;

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