Add Show The Current Value For An Option as a tmux til

README.md

@@ -9,7 +9,7 @@ and pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://tinyletter.com/jbranchaud).
 
-_979 TILs and counting..._
+_981 TILs and counting..._
 
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@@ -881,6 +881,7 @@ _979 TILs and counting..._
 - [Pane Killer](tmux/pane-killer.md)
 - [Reclaiming The Entire Window](tmux/reclaiming-the-entire-window.md)
 - [Rename The Current Session](tmux/rename-the-current-session.md)
+- [Show The Current Value For An Option](tmux/show-the-current-value-for-an-option.md)
 - [Swap Split Panes](tmux/swap-split-panes.md)
 - [Switch To A Specific Session And Window](tmux/switch-to-a-specific-session-and-window.md)
 - [tmux in your tmux](tmux/tmux-in-your-tmux.md)

tmux/show-the-current-value-for-an-option.md

@@ -0,0 +1,21 @@
+# Show The Current Value For An Option
+
+In the `~/.tmux.conf` file, you are able to define and override the values of
+various options. Outside of explicitly setting an option, you may want to know
+what its value is.
+
+Perhaps it is unset, perhaps you don't remember, or maybe this particular
+session or pane is different than the global config.
+
+Either from the CLI, you can run the `tmux` command to check:
+
+`$ tmux show-option -g history-limit`
+
+Or as a command to tmux, using your prefix:
+
+`:show-option -g history-limit`
+
+The `-g` flag will tell you the option's value as set globally for tmux. `-w`
+for window, `-p` for pane, or no flag for the current session.
+
+See `man tmux` for more details.