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Answer Posted / mr. amit rana
As we know that root is superuser in linux, having
unlimited power to manipulate the system: when logged as
root, you can read,modify or delete at any file,change into
any directory,modify configration of the system & perform
almostany task on system.
AS root user you can do virtually unlimited damage to the
system, corrupting oor deleting all files. So,it is
essential that you not log in as root user unless it is
absolutely necessary.
Other reason for it for secuirty purpose,if you work on a
linux server & if it is hacked by a hacker in this case if
you log as root,hacker can acquire the power of root user &
may try to damage your system. So during first login of the
day try to login as normal user rather then root user,
after that you may login as root user.
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