Help with bash_profile

[Alex_Sh]

hello, maybe some one can help me, I have one question in my work in university about Ubuntu and I am stuck with it, the question is:
3. Modify your .bash_profile script so that your PATH includes the current directory (.) and so that your environment variable EDITOR is set to emacs orvi (or whatever else you prefer to use). Run the modified script using source .bash_profile and check that the changes you made have been applied to the current shell (type env).

[sahabcse]

open the bash_profile and set the environmet variable there.

It is located in home directory of the user

/root/.bash_profile

[Rubberman]

open the bash_profile and set the environmet variable there.

It is located in home directory of the user

/root/.bash_profile

Just to clarify, most user home directories (except for the root account) are in /home, as in /home/myusername, which is where you will find files like .bash_profile, .bashrc, etc. Because they start with a dot they are usually invisible to the user. If you are using a command line interface, you can make them visible with the -a or -A option to ls. Example:

[myusername@myhost ~]$ ls
Docs    Media    tmp
[myusername@myhost ~]$ ls -a
.
..
.bash_history    Docs         tmp
.bash_profile    Media
.bashrc          .mozilla