How to Split Two Vertical Pane Inside a Horizontal Pane in Tmux Using Tmuxinator

How to split two vertical pane inside a horizontal pane in tmux using tmuxinator

If neither main-horizontal nor main-vertical is working for you. Then you can adjust your current layout the way you want to be and use the tmux cmd: list-windows witch will return the current layout. In Example:

list-windows returns:

1: bash [190x41] [layout c9f8,190x41,0,0[190x20,0,0,190x20,0,21{95x20,0,21,94x20
,96,21}]]

Then the yaml will be:

windows:
   - editor:
       layout: c9f8,190x41,0,0[190x20,0,0,190x20,0,21{95x20,0,21,94x20,96,21}]
       panes:
         - vim
         - foo1
         - foo2
  - server: rails s

horizontal pane inside vertical pane with tmuxinator

I started to use tmxup instead, here's the solution:

session_name: statuspage
windows:
- window_name: main dev
  layout: main-vertical
  shell_command_before:
    - workon statuspage
  panes:
    - shell_command:
        - python statuspage.py
    - gst
    - pwd

Specify pane percentage in tmuxinator project

The layout should be specified in the layout: line. But you are not limited to the five preset layouts (such as main-vertical). From the man page:

In addition, select-layout may be used to apply a previously used layout - 
the list-windows command displays the layout of each window in a form 
suitable for use with select-layout.  For example:

       $ tmux list-windows
       0: ksh [159x48]
           layout: bb62,159x48,0,0{79x48,0,0,79x48,80,0}
       $ tmux select-layout bb62,159x48,0,0{79x48,0,0,79x48,80,0}

 tmux automatically adjusts the size of the layout for the current window
 size.  Note that a layout cannot be applied to a window with more panes
 than that from which the layout was originally defined.

First set up your layout just how you like it - you can adjust widths with resize-pane until it is just right for you. Then run tmux list-windows. And then you should be able to use the layout: line from the output unaltered in tmuxinator.conf

So based on the output from your gist:

0: tmux [208x73] [layout b147,208x73,0,0[208x62,0,0,208x10,0,63{104x10,0,63,103x10,105,63}]] (active)

The relevant section of the tmuxinator conf file should be:

  - editor:
       layout: b147,208x73,0,0[208x62,0,0,208x10,0,63{104x10,0,63,103x10,105,63}]
       panes:
         - vim
         - #empty, will just run plain bash
         - top

How can I split my screen in 3 using tmux from a bash script

The direct way to do this is to create a detached session, create the panes, then attach to the session.

# -d says not to attach to the session yet. top runs in the first
# window
tmux new-session -d top
# In the most recently created session, split the (only) window
# and run htop in the new pane
tmux split-window -v htop
# Split the new pane and run perl
tmux split-pane -v perl re.pl
# Make all three panes the same size (currently, the first pane
# is 50% of the window, and the two new panes are 25% each).
tmux select-layout even-vertical
# Now attach to the window
tmux attach-session

You can also do this in one call to tmux, but there probably is no reason to do this from a script:

tmux new-session -d top \; split-window -v htop \; split-window -v perl re.pl \; select-layout even-vertical \; attach-session

tmuxinator initialize pane with multiple commands

This is supported from 0.6.6.

name: sample
root: ~/

windows:
  - stats:
    - ssh stats@example.com
    - tail -f /var/log/stats.log
  - logs:
    layout: main-vertical
    panes:
      - logs:
        - ssh logs@example.com
        - cd /var/logs
        - tail -f development.log

Please refer to https://github.com/aziz/tmuxinator#passing-directly-to-send-keys

Launch 2 vertical panes in terminal using TMUX

It looks like you're just missing splitw or split-window:

uuid="$(uuidgen)"
tmux new -d -s "$uuid"
tmux splitw -h -t "${uuid}:0.0"
tmux send-keys -t "${uuid}.0" "tsc -w" ENTER
tmux send-keys -t "${uuid}.1" "nodemon" ENTER
tmux a -t "$uuid"

Here's the tmux man page on splitw:

 split-window [-bdfhIvP] [-c start-directory] [-e environment] [-l size]
         [-t target-pane] [shell-command] [-F format]
               (alias: splitw)
         Create a new pane by splitting target-pane: -h does a horizon‐
         tal split and -v a vertical split; if neither is specified, -v
         is assumed.  The -l option specifies the size of the new pane
         in lines (for vertical split) or in columns (for horizontal
         split); size may be followed by ‘%’ to specify a percentage of
         the available space.  The -b option causes the new pane to be
         created to the left of or above target-pane.  The -f option
         creates a new pane spanning the full window height (with -h) or
         full window width (with -v), instead of splitting the active
         pane.

        An empty shell-command ('') will create a pane with no command
         running in it.  Output can be sent to such a pane with the
         display-message command.  The -I flag (if shell-command is not
         specified or empty) will create an empty pane and forward any
         output from stdin to it.  For example:

              $ make 2>&1|tmux splitw -dI &

        All other options have the same meaning as for the new-window
         command.

---

Related Topics