Definition: '.tmuxbindings.conf': A configuration file used by tmux, a cross-platform command-line utility for managing terminal sessions in Linux distributions like Ubuntu or Debian. It holds session settings that include input bindings (keys pressed), output destinations (where they're sent from/to processes), and other utilities like 'tmux list-arguments' that you can use to print out the full command used by tmux, which could be useful for troubleshooting.