How to run the bash scripts file?

The following bash scripts can be executed one by one in my debian7 console.

apt-get update
apt-get -y upgrade
apt-get install -y build-essential  gcc  libtool  libxml2-dev libxslt1-dev  openssl  libssl-dev
wget https://www.python.org/ftp/python/3.4.0/Python-3.4.0.tgz
tar xf Python-3.4.0.tgz -C /usr/local/src/
cd /usr/local/src/Python-3.4.0/
./configure --prefix=/usr/local/python3.4  --with-ensurepip=install   
make 
make  install
ln -s /usr/local/python3.4/bin/python3.4   /usr/bin/python3.4

Why can’t be executed by the command bash -x /root/initial.sh when i save all the command in the file /root/initial.sh?

root@online:~# . /root/initial.sh

E: Invalid operation update  
E: Invalid operation upgrade  
Reading package lists... Done  
Building dependency tree  
Reading state information... Done  
E: Unable to locate package libssl-dev  
-bash: $'\r': command not found  
--2014-10-24 12:02:20--  https://www.python.org/ftp/python/3.4.0/Python-3.4.0.tgz%0D  
Resolving www.python.org (www.python.org)... 103.245.222.223  
Connecting to www.python.org (www.python.org)|103.245.222.223|:443... connected.  
HTTP request sent, awaiting response... 404 Not Found  
2014-10-24 12:02:20 ERROR 404: Not Found.  

tar: /usr/local/src/\r: Cannot open: No such file or directory  
tar: Error is not recoverable: exiting now  
: No such file or directoryython-3.4.0/  
-bash: ./configure: No such file or directory  
ln: failed to create symbolic link `/usr/bin/python3\r': File exists  
-bash: $'\r': command not found  
-bash: $'\r': command not found  
-bash: $'\r': command not found  
-bash: $'\r': command not found  
-bash: $'\r': command not found 

Somebody think that Windows line endings are different from Unix/Linux line endings. bash doesn’t know how to handle Windows line-endings. Create the file with an editor on Linux.

1. i rewrite it in putty console with nano ,same problem remains. 2.It is strange that i nano the /root/ini.sh in putty console,there is just one line in it:

apt-get update 

When i input :

sh /root/ini.sh 
E: Invalid operation update

There is no relationship betwwen my ini.sh and ‘\r’ ,what is the matter?