I download this package and following the instructions on the website i untared its package in /usr/local/share and used ./install command to install it.
now I need to remove it. Is there anyway to do that ? If it needs them I still have the installation files.
this is the website
If there is no uninstall option you need to manually remove the files.
Most (if not all) of the files will be installed inside a directory (from the readme I would assume it is called ns-allinone-2.35) at the path you ran ./install. Simply use a rm -rf to remove that directory and it will be gone.
Now for 1 extra step: during installion either the installer added some links to ~./bashrc or you edited them in yourself. So do a (backup at the 2nd command):
cd ~
cp .bashrc .bashrc_old
gedit ~/.bashrc
and have a look for anything related to ns-allinone-2.35 and remove it. Be careful; if you mess up it might be problematic. After editing you need to parse the changes:
source ~/.bashrc
