安装方法：

在http://linux.softpedia.com/progDownload/Dos2Unix-Download-5519.html下载hd2u-1.0.0.tgz

[root@localhost ~]#tar -zxf hd2u-1.0.0.tgz

[root@localhost ~]#cd hd2u-1.0.0

[root@localhost ~]#./configure

1.  
   Configuring hd2u 1.0.0
2.  
   checking for gcc... gcc
3.  
   checking for C compiler default output file name... a.out
4.  
   checking whether the C compiler works... yes
5.  
   checking whether we are cross compiling... no
6.  
   checking for suffix of executables...
7.  
   checking for suffix of object files... o
8.  
   checking whether we are using the GNU C compiler... yes
9.  
   checking whether gcc accepts -g... yes
10.  
    checking for gcc option to accept ANSI C... none needed
11.  
    checking for a BSD-compatible install... /usr/bin/install -c
12.  
    checking for getopt_long in -lpopt... no
13.  
    configure: error: *** libpopt not found

在http://rpm.pbone.net/index.php3/stat/4/idpl/17960519/dir/other/com/popt-1.14-2rt.x86_64.rpm.html下载popt-1.14-2rt.x86_64.rpm

[root@localhost ~]#rpm  -ivh popt-1.14-2rt.x86_64.rpm

[root@localhost ~]#cd hd2u-1.0.0

[root@localhost ~]#./configure&&make&&make install

[root@localhost ~]#whereis dos2unix

dos2unix: /usr/local/bin/dos2unix

安装成功

如上述步骤执行whereis dos2unix ：没有返回路径请执行下面。

今天需要转义windows下面的文件，发现centos6.5下面提示 -bash: dos2unix: command not found，

最终只需要执行这条语句就可以了yum install -y dos2unix

上网搜索，发现百度里面的安装例子都差不多http://blog.csdn.net/w616589292/article/details/38274475

但发现按上面的安装步骤，还是提示：

[root@iZwz93nu0s9j3y9zwzy7bkZ hd2u-1.0.0]# ./configure
Configuring hd2u 1.0.0
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for a BSD-compatible install... /usr/bin/install -c
checking for getopt_long in -lpopt... no
configure: error: *** libpopt not found

但发现按上面的安装步骤，还是提示：

rpm -ivh popt-1.8-1.x86_64.rpm 或者 rpm -ivh popt-1.14-2rt.x86_64.rpm，之后还是提示同样的错误。

后面去下载了popt-1.16.tar.gz，重新安装后发现才能正常使用

http://www.linuxfromscratch.org/blfs/view/svn/general/popt.html

tar -xzvf popt-1.16.tar.gz

cd popt-1.16

./configure

make

make install

再cd hd2u-1.0.0

同样的

./configure

make

make install

用root安装完成后，请重新打开一个界面或者exit。