mjhjmtu

I'm looking for a behavior that is similar to how vim(1) handles its split windows with ^w =. I know tmux(1) has predefined layouts with ^b Meta[1-5], but this likely does not have the layout that I am currently using.

When splitting a window, it halves the current window for both panes. Split again, and it halves that pane into two new. Combine vertical and horizontal splits, and they continue to halve each other, each new pane getting smaller and smaller.

How can I keep the new layout I've just created, but have all vertical and horizontal splits equally balanced, like vim(1) does with ^w =?

Vertically

select-layout even-vertical

Usually assigned to: Ctrl+b, Alt+2

Horizontally

select-layout even-horizontal

Usually assigned to: Ctrl+b, Alt+1

You can use ctrl-b space to cycle through layouts with even spacing, but that won't necessarily preserve the layout you had.

From the command line you can use

tmux select-layout tiled

to make your splits all roughly equal size. You can bind that to a key command as well.

I don't know any single key shortcut, but maybe this helps you:

You can try to write some script to do the layout, and bind a key to the script. You can do this by using tmuxcommand pipe-pane [-o] [-t target-pane] [shell-command] to write the current layout to the script. Next you need to read a layout prepared by the script using tmuxcommand select-layout .

I was having a hard time finding the magic incantation to split into 4 equal quadrants, so here it is:

# Split session into FOUR EQUAL quadrants
tmux selectp -t 0 # select the first (0) pane
tmux splitw -h -p 50 # split it into two halves
tmux selectp -t 0 # select the first (0) pane
tmux splitw -v -p 50 # split it into two halves

tmux selectp -t 2 # select the new, second (2) pane
tmux splitw -v -p 50 # split it into two halves
tmux selectp -t 0 # go back to the first pane