I am working on my project using network simulator2.I installed it and everything is fine.The symbolic link created to use the command
ns of the installed application is
$ sudo ln -s /home/vinaychalluru/ns-allinone-2.34/ns-2.34/ns /usr/bin/ns
I came to know that trying to create a new symbolic link with name ns gives
ln: creating symbolic link '/usr/bin/ns': File exists
How can i delete the already created symlink or can I replace it with any other commands?