我需要一个转换实用程序/脚本,它将在 Mac 上生成的 .sql 转储文件转换为在 Windows 上可读的文件。这是我在这里遇到的问题的延续。问题似乎与文本文件中的换行格式有关,但我找不到进行转换的工具...
12 回答
Windows 使用carriage return
+line feed
作为换行符:
\r\n
Unix 仅Line feed
用于换行:
\n
总之,只需将每一次出现的\n
by替换掉\r\n
。Mac OSX 上默认情况下
两者均不可用。
幸运的是,您可以简单地使用or来完成这项工作:unix2dos
dos2unix
Perl
sed
sed -e 's/$/\r/' inputfile > outputfile # UNIX to DOS (adding CRs)
sed -e 's/\r$//' inputfile > outputfile # DOS to UNIX (removing CRs)
perl -pe 's/\r\n|\n|\r/\r\n/g' inputfile > outputfile # Convert to DOS
perl -pe 's/\r\n|\n|\r/\n/g' inputfile > outputfile # Convert to UNIX
perl -pe 's/\r\n|\n|\r/\r/g' inputfile > outputfile # Convert to old Mac
代码片段来自:
http ://en.wikipedia.org/wiki/Newline#Conversion_utilities
这是安妮答案的改进版本——如果你使用 perl,你可以对文件“就地”进行编辑,而不是生成一个新文件:
perl -pi -e 's/\r\n|\n|\r/\r\n/g' file-to-convert # Convert to DOS
perl -pi -e 's/\r\n|\n|\r/\n/g' file-to-convert # Convert to UNIX
您可以使用Homebrew安装 unix2dos
brew install unix2dos
然后你可以这样做:
unix2dos file-to-convert
您还可以将 dos 文件转换为 unix:
dos2unix file-to-convert
只需tr
删除:
tr -d "\r" <infile.txt >outfile.txt
你可能想要unix2dos:
$ man unix2dos
NAME
dos2unix - DOS/MAC to UNIX and vice versa text file format converter
SYNOPSIS
dos2unix [options] [-c CONVMODE] [-o FILE ...] [-n INFILE OUTFILE ...]
unix2dos [options] [-c CONVMODE] [-o FILE ...] [-n INFILE OUTFILE ...]
DESCRIPTION
The Dos2unix package includes utilities "dos2unix" and "unix2dos" to convert plain text files in DOS or MAC format to UNIX format and vice versa. Binary files and non-
regular files, such as soft links, are automatically skipped, unless conversion is forced.
Dos2unix has a few conversion modes similar to dos2unix under SunOS/Solaris.
In DOS/Windows text files line endings exist out of a combination of two characters: a Carriage Return (CR) followed by a Line Feed (LF). In Unix text files line
endings exists out of a single Newline character which is equal to a DOS Line Feed (LF) character. In Mac text files, prior to Mac OS X, line endings exist out of a
single Carriage Return character. Mac OS X is Unix based and has the same line endings as Unix.
您可以使用cygwinunix2dos
在 DOS/Windows 机器上运行,也可以使用MacPorts在 Mac 上运行。
- 用自制软件安装 dos2unix
- 运行
find ./ -type f -exec dos2unix {} \;
以递归转换当前文件夹中的所有行尾
vim
还可以将文件从 UNIX 转换为 DOS 格式。例如:
vim hello.txt <<EOF
:set fileformat=dos
:wq
EOF
这是一个非常简单的方法,对我来说效果很好,由Davy Schmeits 的博客提供:
cat foo | col -b > foo2
其中 foo 是在行尾具有 Control+M 字符的文件,而 foo2 是您正在创建的新文件。
以下是基于上述答案以及健全性检查的完整脚本,可在 Mac OS X 上运行,并且也应在其他 Linux / Unix 系统上运行(尽管尚未经过测试)。
#!/bin/bash
# http://stackoverflow.com/questions/6373888/converting-newline-formatting-from-mac-to-windows
# =============================================================================
# =
# = FIXTEXT.SH by ECJB
# =
# = USAGE: SCRIPT [ MODE ] FILENAME
# =
# = MODE is one of unix2dos, dos2unix, tounix, todos, tomac
# = FILENAME is modified in-place
# = If SCRIPT is one of the modes (with or without .sh extension), then MODE
# = can be omitted - it is inferred from the script name.
# = The script does use the file command to test if it is a text file or not,
# = but this is not a guarantee.
# =
# =============================================================================
clear
script="$0"
modes="unix2dos dos2unix todos tounix tomac"
usage() {
echo "USAGE: $script [ mode ] filename"
echo
echo "MODE is one of:"
echo $modes
echo "NOTE: The tomac mode is intended for old Mac OS versions and should not be"
echo "used without good reason."
echo
echo "The file is modified in-place so there is no output filename."
echo "USE AT YOUR OWN RISK."
echo
echo "The script does try to check if it's a binary or text file for sanity, but"
echo "this is not guaranteed."
echo
echo "Symbolic links to this script may use the above names and be recognized as"
echo "mode operators."
echo
echo "Press RETURN to exit."
read answer
exit
}
# -- Look for the mode as the scriptname
mode="`basename "$0" .sh`"
fname="$1"
# -- If 2 arguments use as mode and filename
if [ ! -z "$2" ] ; then mode="$1"; fname="$2"; fi
# -- Check there are 1 or 2 arguments or print usage.
if [ ! -z "$3" -o -z "$1" ] ; then usage; fi
# -- Check if the mode found is valid.
validmode=no
for checkmode in $modes; do if [ $mode = $checkmode ] ; then validmode=yes; fi; done
# -- If not a valid mode, abort.
if [ $validmode = no ] ; then echo Invalid mode $mode...aborting.; echo; usage; fi
# -- If the file doesn't exist, abort.
if [ ! -e "$fname" ] ; then echo Input file $fname does not exist...aborting.; echo; usage; fi
# -- If the OS thinks it's a binary file, abort, displaying file information.
if [ -z "`file "$fname" | grep text`" ] ; then echo Input file $fname may be a binary file...aborting.; echo; file "$fname"; echo; usage; fi
# -- Do the in-place conversion.
case "$mode" in
# unix2dos ) # sed does not behave on Mac - replace w/ "todos" and "tounix"
# # Plus, these variants are more universal and assume less.
# sed -e 's/$/\r/' -i '' "$fname" # UNIX to DOS (adding CRs)
# ;;
# dos2unix )
# sed -e 's/\r$//' -i '' "$fname" # DOS to UNIX (removing CRs)
# ;;
"unix2dos" | "todos" )
perl -pi -e 's/\r\n|\n|\r/\r\n/g' "$fname" # Convert to DOS
;;
"dos2unix" | "tounix" )
perl -pi -e 's/\r\n|\n|\r/\n/g' "$fname" # Convert to UNIX
;;
"tomac" )
perl -pi -e 's/\r\n|\n|\r/\r/g' "$fname" # Convert to old Mac
;;
* ) # -- Not strictly needed since mode is checked first.
echo Invalid mode $mode...aborting.; echo; usage
;;
esac
# -- Display result.
if [ "$?" = "0" ] ; then echo "File $fname updated with mode $mode."; else echo "Conversion failed return code $?."; echo; usage; fi
在 Yosemite OSX 上,使用以下命令:
sed -e 's/^M$//' -i '' filename
其中^M
序列是通过按Ctrl+ Vthen来实现的Enter。
扩展 Anne 和 JosephH 的答案,在简短的 perl 脚本中使用 perl,因为我懒得每次都输入 perl-one-liner。
创建一个文件,例如命名为“unix2dos.pl”并将其放在路径中的目录中。编辑文件以包含 2 行:
#!/usr/bin/perl -wpi
s/\n|\r\n/\r\n/g;
假设“which perl”在您的系统上返回“/usr/bin/perl”。使文件可执行(chmod u+x unix2dos.pl)。
示例:
$ echo "hello" > xxx
$ od -c xxx (检查文件是否以 nl 结尾)
0000000 hello \n
$ unix2dos.pl xxx
$ od -c xxx (检查它现在是否以 cr lf 结尾)
0000000 你好 \r \n