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Tmux is an open-source terminal multiplexer which allows multiple terminal sessions to be accessed simultaneously in a single window. Tmux allows you to switch easily between several programs in one terminal, detach them (they keep running in the background) and reattach them to a different terminal.

Tmux is installed on Karolina's login nodes.

Note that GNU Screen is not supported, but if you prefer it, you can install it in your /home folder:

tar xf screen-4.8.0.tar.gz && rm screen-4.8.0.tar.gz
cd screen-4.8.0
./configure --prefix=$HOME/.local/screen
make install
mkdir $HOME/.local/screen/etc
cp etc/etcscreenrc $HOME/.local/screen/etc/screenrc
echo "export PATH=$HOME/.local/screen/bin:$PATH" >> $HOME/.bashrc
cd ../ && rm -rf screen-4.8.0