Linux

DOES ROOT USER HAS A PROFILE?
JUST LIKE .PROFILE FOR EVERY USER?

i UNDERSTAND AS A SECURITY REASON THAT IS GENERALLY NOT AVAILABLE?
DOES ANYBODY KNOW HOW IT IS A SECURITY THREAT?

IF WE DONT HAVE A .PROFILE FILE, THEN WHENVER WE EXPORT A VARIABLE OR DO SIMILAR STUFF, IN WHICH FILE IS THAT WRITTEN?

PLEASE ENLIGHTEN ME :?

PENGUIN

I think root user have profile in / folder i.e /.profile...

also the common profile /etc/profile will be sourced by default if root shell is ksh.

Most recent Linux distributions use a home directory for root of /root

You can check this with
# awk -vFS=':' '/^root/ {print $6}' /etc/passwd
/root

Again, most Linux distributions have root set up to use bash
# awk -vFS=':' '/^root/ {print $7}' /etc/passwd
/bin/bash

If you look in roots home directory, you'll see .bash_profile
# ls -la $HOME/.bash_profile
-rw-r--r-- 1 root root 234 Jul 6 2001 /root/.bash_profile

This all depends on a few things (particular Linux distro, security policy at your site, how your sysadmin wants things done, etc, etc)

Cheers
ZB