Cannot enter in centOS with any user

Question

I am using cent OS Operating system without GNOME.

In the starting, it asks

localhost login:
Password:

It has one user named service under group name service whose password is also service.

I want to enter in OS by this user named service.

When I do this, it shows this lines

Last Login: Mon Feb 18 16:16:26 on tty1
-bash: /home/service/.bashrc: Permission denied
-bash-3.2$

I changed in /etc/sudoers, and add service ALL=(ALL) ALL, right below root ALL=(ALL) ALL, but it didn't work.

when I try to switch from root to service, it shows the same error.

EDITED

When I run ls -a -l | grep .bashrc, it shows

lrwxrwxrwx 1 root  root   41 Feb 18 11:40 .bashrc -> /home/service/etc/version.symlink/.bashrc
-rw-r--r-- 1 service service 124 Feb 15 13:06 .bashrc-moved-1361167832

Help me. Looking for your kind response.

Answer 1

Your login as user 'service' seems to be successful. On login, the Bash shell will be loaded, which by default executes ~/.bashrc. But in your case there seems to be something strange with your ~/.bashrc. You also seem to have a file called '.bashrc-moved-1361167832'.

Now I don't know how this happened, but something seems to have moved your original .bashrc away, and replaced it with a link to a file that you can't execute.

I have no idea what has done this and why, but if you want to get rid of it then you could do this as user 'service' in your home dir ~:

sudo rm .bashrc
mv .bashrc-moved-1361167832 .bashrc

This will first remove the link to this alternative file. And then (I guess) restore the original.

Now try to relogin.