Add Fix Previous Command With fc as a Unix TIL

Author: jbranchaud

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).
 
-_1595 TILs and counting..._
+_1596 TILs and counting..._
 
 See some of the other learning resources I work on:
 - [Ruby Operator Lookup](https://www.visualmode.dev/ruby-operators)
@@ -1532,6 +1532,7 @@ See some of the other learning resources I work on:
 - [Find Newer Files](unix/find-newer-files.md)
 - [Find Occurrences Of Multiple Values With Ripgrep](unix/find-occurrences-of-multiple-values-with-ripgrep.md)
 - [Find Top-Level Directories Matching A Pattern](unix/find-top-level-directories-matching-a-pattern.md)
+- [Fix Previous Command With fc](unix/fix-previous-command-with-fc.md)
 - [Fix Shim Path After asdf Upgrade](unix/fix-shim-path-after-asdf-upgrade.md)
 - [Fix Unlinked Node Binaries With asdf](unix/fix-unlinked-node-binaries-with-asdf.md)
 - [Forward Multiple Ports Over SSH](unix/forward-multiple-ports-over-ssh.md)

unix/fix-previous-command-with-fc.md

@@ -0,0 +1,26 @@
+# Fix Previous Command With fc
+
+The `fc` command is a Bash and ZSH built-in command that allows you to interact
+with the history of commands issued in the shell. The most straightforward use
+case I know of for using this command is to fix or edit some aspect of the
+previous run command.
+
+When `fc` is executed with no arguments or flags, it will grab the latest entry
+to the command history and load it into your default editor. For me, that is
+Vim.
+
+I can make edits in that Vim session like I'd do in any other Vim session. When
+I write and quit (`:wq`) the file, the updated command will be executed. This
+is useful if, say, I've made a typo in the previous command and would prefer
+the ergonomics of my default editor to fix it. Or let's say I have a really
+long command with many flags and long file path arguments. It would be much
+easier and quicker to edit those paths from my editor than from the terminal
+prompt.
+
+If I've opened my editor (Vim) with `fc` and I decide I don't want to execute
+the command after all, I can _compiler quit_ Vim (exit with an error code)
+using `:cq`. The command will not be executed in this case.
+
+See `man zshbuiltins` for more details about this command and all of its flags.
+
+[source](https://www.computerhope.com/unix/uhistory.htm)