From c1ce5594525af55a3c7dea328265772b87285699 Mon Sep 17 00:00:00 2001
From: jbranchaud <jbranchaud@gmail.com>
Date: Sun, 16 Nov 2025 22:21:45 -0600
Subject: [PATCH] Add Add A Bunch Of CLI Utilities With corutils as a Mac TIL

---
 README.md                                     |  3 +-
 ...a-bunch-of-cli-utilities-with-coreutils.md | 51 +++++++++++++++++++
 2 files changed, 53 insertions(+), 1 deletion(-)
 create mode 100644 mac/add-a-bunch-of-cli-utilities-with-coreutils.md

diff --git a/README.md b/README.md
index 359501b..c6f9e8c 100644
--- a/README.md
+++ b/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).
 
-_1692 TILs and counting..._
+_1693 TILs and counting..._
 
 See some of the other learning resources I work on:
 
@@ -699,6 +699,7 @@ If you've learned something here, support my efforts writing daily TILs by
 - [Access All Screen And Video Capture Options](mac/access-all-screen-and-video-capture-options.md)
 - [Access System Information On OS X](mac/access-system-information-on-osx.md)
 - [Access Unsupported Screen Resolutions With RDM](mac/access-unsupported-screen-resolutions-with-rdm.md)
+- [Add A Bunch Of CLI Utilities With coreutils](mac/add-a-bunch-of-cli-utilities-with-coreutils.md)
 - [Capture Screenshot To Clipboard From CLI](mac/capture-screenshot-to-clipboard-from-cli.md)
 - [Check Network Quality Stats From The Command Line](mac/check-network-quality-stats-from-the-command-line.md)
 - [Clean Up Old Homebrew Files](mac/clean-up-old-homebrew-files.md)
diff --git a/mac/add-a-bunch-of-cli-utilities-with-coreutils.md b/mac/add-a-bunch-of-cli-utilities-with-coreutils.md
new file mode 100644
index 0000000..5b8b869
--- /dev/null
+++ b/mac/add-a-bunch-of-cli-utilities-with-coreutils.md
@@ -0,0 +1,51 @@
+# Add A Bunch Of CLI Utilities With coreutils
+
+The [`coreutils`](https://www.gnu.org/software/coreutils/) project is a
+collection of useful utilities that every operating system ought to have.
+
+> The GNU Core Utilities are the basic file, shell and text manipulation
+> utilities of the GNU operating system. These are the core utilities which are
+> expected to exist on every operating system.
+
+While many of these utilities are redundant with BSD utilities that MacOS
+chooses to ship with, there are some differences in the overlapping ons and then
+many additions from `coreutils`.
+
+They can be installed with Homebrew:
+
+```bash
+$ brew install coreutils
+```
+
+And then you should have some new things available on your path. Take `shuf`, for
+instance. This utility can shuffle and select items from a file or incoming
+lines from another command. Here I use it to randomly grab a number between 1
+and 5 (with the help of `seq`):
+
+```bash
+❯ seq 1 5 | shuf -n 1
+3
+
+❯ seq 1 5 | shuf -n 1
+2
+
+❯ seq 1 5 | shuf -n 1
+5
+```
+
+Or how about some utilities for manipulating file names? Among others there is
+`realpath`, `basename`, and `dirname`.
+
+```bash
+❯ realpath README.md
+/Users/lastword/dev/jbranchaud/til/README.md
+
+❯ realpath README.md | xargs basename
+README.md
+
+❯ realpath README.md | xargs dirname
+/Users/lastword/dev/jbranchaud/til
+```
+
+See the [manual](https://www.gnu.org/software/coreutils/manual/coreutils.html)
+for many more details.