$ tmux show -g | grep -v --color=never '^#' | grep -v --color=never '^$'
# or
$ tmux show-options -g | grep -v --color=never '^#' | grep -v --color=never '^$'
$ tmux show -s command-alias
command-alias[0] split-pane=split-window
command-alias[1] splitp=split-window
command-alias[2] "server-info=show-messages -JT"
command-alias[3] "info=show-messages -JT"
command-alias[4] "choose-window=choose-tree -w"
command-alias[5] "choose-session=choose-tree -s"
command-alias[99] "ls=list-sessions -F \"(created #{t/f/%y-%m-%d %H#:%M#:%S:window_activity}) - #{session_name}: #{session_windows} windows#{?session_grouped - (group ,}#{session_group}#{?session_grouped,),}#{?session_attached, [attached],}\""
[!NOTE|label:references:]
$ grep -nH alias ~/.tmux.conf
/Users/marslo/.tmux.conf:74:set -s command-alias[99] 'ls=list-sessions -F "(created #{t/f/%y-%m-%d %H#:%M#:%S:window_activity}) - #{session_name}: #{session_windows} windows#{?session_grouped - (group ,}#{session_group}#{?session_grouped,),}#{?session_attached, [attached],}"'