更改dot.profile和.bashrc

Question

I need to change my dot.profile and .bashrc files in ubuntu 16.04 so that I can set up my android developer. I can't save the files after I change them in an editor because they have root permissions but I can't change the permissions either. I need to set the 'JAVA_HOME' path in /etc/environment or ~/.bashrc configuration to the 'jdk1.8.0_45'. Also I need to run /bin/bash --login everytime I run my terminal so that the path is set up right etc.

Can anyone help with these few minor problems?

Im not sure why I got downvoted...

Answer 1

The file /etc/environment and /etc/bash.bashrc and /etc/profile are owned by root, as most files in that directory /etc . That is expected and should be so.

The files at ~/ aka $HOME which is usually /home/username should contain .bashrc and .profile :

$ ls ~/.bashrc ~/.profile
/home/user/.bashrc  /home/user/.profile

Those file should be own by the user, as is the usual in that directory.

If those files are own by root, change it. I Ubuntu:

$ sudo chown user:user ~/.bashrc ~/.profile

Please: use the correct user name !!

In any case, there should not be any dot.profile in any of both directories, and if it exist, you may confidently erase it.