Install tmux on RHEL/CentOS 5 and 6

# install deps

yum install gcc kernel-devel make ncurses-devel

# DOWNLOAD SOURCES FOR LIBEVENT AND MAKE AND INSTALL

wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz

tar -xvzf libevent-2.0.21-stable.tar.gz

cd libevent-2.0.21-stable

./configure --enable-shared --prefix=/usr/local

make

sudo make install

# DOWNLOAD SOURCES FOR TMUX AND MAKE AND INSTALL

wget https://github.com/tmux/tmux/releases/download/2.7/tmux-2.7.tar.gz

tar -xvzf tmux-2.7.tar.gz

cd tmux-2.7

./configure --prefix=/usr/local LDFLAGS="-L/usr/local/lib -Wl,-rpath=/usr/local/lib"

make

sudo make install

# pkill tmux

# close your terminal window (flushes cached tmux executable)

# open new shell and check tmux version

tmux -V

Tutorial for TMUX