tmux is an open-source terminal multiplexer for Unix-like operating systems. It allows multiple terminal sessions to be accessed simultaneously in a single window. It is useful for running more than one command-line program at the same time.
Install
sudo apt install tmux
cat << EOF | tee ${HOME}/.tmux.conf >/dev/null
set -g base-index 1
# remap prefix from 'c-b' to 'c-a'
unbind C-b
set-option -g prefix c-a
bind-key c-a send-prefix
set -g default-terminal 'screen-256color'
set -g history-limit 10000
set -g status-fg green
set -g status-bg black
# window/pane split
bind | split-window -h
bind - split-window -v
unbind '"'
unbind %
EOF
Knowledge
tmux ls
tmux new -s my_session
tmux attach-session -t 0
tmux attach-session -t my_session
Ctrl + a % » Split pane horizontally
Ctrl + a " » Split pane vertically
Ctrl + a x » Close current pane
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Ctrl + a c » Create a new window
Ctrl + a w » Choose window from a list
Ctrl + a 0 » Switch to window by number
Ctrl + a , » Rename the current window
Ctrl + a o » Go to the next pane
Ctrl + a ; » Toggle between pane
Ctrl + a d » Detach the session
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References