Add Use A Space To Exclude Command Fromm History as a Zsh TIL

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
 
-_1478 TILs and counting..._
+_1479 TILs and counting..._
 
 ---
 
@@ -1758,6 +1758,7 @@ _1478 TILs and counting..._
 
 - [Add To The Path Via Path Array](zsh/add-to-the-path-via-path-array.md)
 - [Link A Scalar To An Array](zsh/link-a-scalar-to-an-array.md)
+- [Use A Space To Exclude Command From History](zsh/use-a-space-to-exclude-command-from-history.md)
 
 ## Usage
 

zsh/use-a-space-to-exclude-command-from-history.md

@@ -0,0 +1,37 @@
+# Use A Space To Exclude Command From History
+
+When using a shell like `zsh`, you get the benefit of it keeping track of the
+history of the commands you've entered into the shell. This means you can
+quickly traverse pack to a previous command that you want to run again. It also
+means [a tool like `fzf` can hook into your history
+file](https://github.com/junegunn/fzf?tab=readme-ov-file#key-bindings-for-command-line)
+so that you can fuzzy-search for a command you may have executed weeks ago.
+
+The history is stored on your machine in a plaintext file. Not every command
+should be stored in a plaintext file. For instance, you don't want `zsh` to
+persist a command that includes a password.
+
+With the `histignorespace` option enabled in `zsh`, we can put a leading space
+in front of our command and it will be excluded from the history file.
+
+Try it yourself:
+
+```bash
+$ echo 'this command will be remembered'
+this command will be remembered
+
+$  echo 'this command will be forgotten'
+this command will be forgotten
+```
+
+Notice the leading space in the second command. Trying pressing your _up_ arrow
+and notice only that first `echo` is remembered.
+
+Make sure `histignorespace` is included in the list when you run `setopt`. If
+it isn't, then add it:
+
+```bash
+$ setopt histignorespace
+```
+
+[source](https://stackoverflow.com/questions/8473121/execute-a-command-without-keeping-it-in-history/49643320#49643320)