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Tmux Basics.md

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What is Tmux?

Tmux is a terminal Multiplexer . There are several advantages on why should one use tmux

  • Terminal Split Screen
  • Multiple Terminal Sessions with simple commands
  • Run Processes that are not tied to your current sessions. (For Example, Long Running commands can be invoked using Tmux)
  • Ability to SSH using Tmux
    • Ie, Ability to connect and disconnect sessions at will. Tmux will keep the session alive even if we exit the session.
  • Share sessions with another person (Peer Programming)

1. Install tmux

brew install tmux

2. Create a new Session/ detach and attach Session

If we just want to create a new session with default name, just type the following

tmux

In order to detached from a session

tmux detach
tmux detach #
tmux detach -t <name>

To attach to a session

tmux attach
tmux attach #
tmux attach -t <name>

3. Exit tmux session

Just like any other terminal sessions, we can use exit command to exit tmux sessions

exit

4. Tmux Config

In order to manage configuration of Tmux, we can use the following file

vim ~/.tmux.conf

5. Commands using ctr-b

  • ctrl-b --> Prefix used in Tmux to invoke Tmux commands.
  • NOTE: This only works within Tmux terminals.

Managing Tmux Windows:

  • ctrl-b + c -- Create a new tmux Window

  • ctrl-b + p -- Tab to previous tmux Window (p - Previous)

  • ctrl-b + n -- Tab to next tmux Window (n - Next)

  • ctrl-b + 0-9 -- Switching between tmux window using number

  • ctrl-b + w -- List all Tmux window

  • ctrl-b + , -- Rename current tmux Window

  • ctrl-b + x - Force kill active session

Splitting Windows:

  • ctrl-b + % -- Split Windows Vertically
  • ctrl-b + : -- It helps us to provide named commands to Tmux. When we use :split-window we would be abke to split
  • ctrl-b + arrowkeys -- Switch between different panes within tmux window

Session Management:

  • tmux list-sessions -- List all tmux sessions

  • tmux attach -t newshell -- Attaching to existing tmux sessions

  • ctrl-b + d -- Detach from the current session

6. Creating a new Tmux Session

tmux new -s newshell

7. Destroy all Tmux Sessions

To destroy all the sessions

tmux kill-server

If inside tmux, and if we want to kill the current session

  • ctrl-b + x - Force kill active session

Things to learn

  1. Configuring tmux config file
  2. Installing tmuxp for predefined tmux workstation