Run a command in all tmux panes of the current window

allpanes.sh

#!/bin/bash

# Runs the specified command (all arguments together) in all tmux panes in the current window

# Notate which window/pane we were originally at
window=`tmux display-message -p '#I'`
ORIG_PANE_INDEX=`tmux display-message -p '#P'`

command=$@

# Loop through the panes that are in the window
for pane in `tmux list-panes -F '#P'`; do
    # Skip the window that the command was ran in, run it in that window last
    # since we don't want to suspend the script that we are currently running
    # and also we want to end back where we started..
    if [ $ORIG_PANE_INDEX -eq $pane ]; then
        continue
    fi
    tmux select-pane -t $pane #select the pane
    # run the command & switch back to the gui if there was any
    tmux send-keys C-[ "i$command" C-m
done

tmux select-pane -t $ORIG_PANE_INDEX #select the original pane
tmux send-keys C-c C-[ "i$command" C-m

hacked up from https://gist.github.com/deshawnbw/2773454

My version is also for terminals with vi mode, since it ensures that we're in insertion mode before entering the command.