tmux: add copy/paste hooks

tmux.conf

@@ -98,6 +98,12 @@ set -g @plugin 'seebi/tmux-colors-solarized'
 set -g @resurrect-strategy-vim 'session'
 set -g @continuum-restore 'on'
 
+# Load OS-specific settings
+if-shell "uname | grep -q Linux" "source-file ~/.tmux.linux.conf"
+if-shell "uname | grep -q Darwin" "source-file ~/.tmux.mac.conf"
+
+# Load any system-specific/private settings
+if-shell "[ -f ~/.tmux.private]" "source ~/.tmux.private"
+
 # Initialize TMUX plugin manager (keep this line at the very bottom of tmux.conf)
 run -b '~/.tmux/plugins/tpm/tpm'
-