Application scenarios

When you use SSH to log in to a remote machine and want to open one or more tabs, you need to perform SSH login again. Assuming your SSH login is not secret free, you will need to enter your password every time you log in! Assuming that you need to log in to a remote machine through one or more jumpers, the cost of opening a new Tab increases dramatically…

Oh, my God. Somebody help me? A: Tmux

Simple to use

Let’s take a brief look at Tmux in order, and then introduce some basic concepts and common shortcuts.

How do I turn on Tmux?

tmux              Create a session without specifying a session name
tmux new -s demo  Create a session and specify the session name as demo
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How do I exit a session?

What do you do when you do something time-consuming in a session and want to exit without closing the session?

1. Enter the following command line:tmux detach
2. Use shortcut keysCtrl+b :And then typedetach
3. Use shortcut keysCtrl+b d(recommended)

What do you do when you do something in a session and want to exit and close the session?

1. Enter the following command line:tmux kill-session
2. Use shortcut keysCtrl+b :And then typekill-session

How do I view the session list?

When you want to check which existing sessions exist, you can use the following command to check

tmux list-sessions  List all sessions
tmux ls             # alias
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How do I enter an existing session?

When you want to enter an existing session and continue, use the tmux attach -t session_name command, alias tmux a -t session_name

tmux a          The first session is entered by default
tmux a -t demo  Enter a session called Demo
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How do I switch from one session to another?

If you want to switch from one session to another, use the tmux switch -t session_name command

tmux a               Enter the first session
tmux switch -t demo  Switch to a session named Demo
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The basic concept

There are several concepts in Tmux, namely Session, Window and Pane. The relationship between them is shown in the figure below:

In the Tmux service, there are multiple sessions, one Session has multiple Windows, and one Window has multiple Panes. When a Session is created, a Window is created by default, and a Pane is created by default.

Common Shortcut keys

System instructions

The Window instruction

Pane instruction

Personalized configuration

The Tmux configuration file is in ~/.tmux.conf. If it does not exist, create it yourself.

Change the prefix shortcut key

If you feel that the default Ctrl+ B prefix shortcut is not working well, you can change it to another shortcut.

Change the prefix shortcut key to Ctrl+ A
set -g prefix C-a
unbind C-b
bind C-a send-prefix
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Change the split screen shortcut key

The default split screen shortcuts are not easy to remember, you can change them to look like this.

unbind '"'
bind - splitw -v -c '#{pane_current_path}' # Add panel in vertical direction, enter current directory by default
unbind %
bind | splitw -h -c '#{pane_current_path}' # Add panel in horizontal direction, enter current directory by default
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Enabling mouse Support

By default, mouse operation is not supported. If you are not a keyboard controller, you are advised to enable it. After this function is enabled, Pane can be directly selected by mouse and Pane size can be adjusted by dragging.

set-option -g mouse on # Support mouse to select text, etc
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Mapping direction key

If you are familiar with Vim, you must like HJKL. Let’s map the arrow keys of Tmux.

# -r stands for repeatable button. For about 500ms, the repeated button will be effective for quick movement
bind -r k select-pane -U # bind k to up
bind -r j select-pane -D # bind j to lower
bind -r h select-pane -L Bind h to the left
bind -r l select-pane -R Bind l to the right
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summary

With this treasure tool, uncle’s house is bigger, life is better, life is better and better!