From c9ac37893fd55b1b079f0d70420ac30673ead775 Mon Sep 17 00:00:00 2001
From: Trumeet <yuuta@yuuta.moe>
Date: Mon, 11 Apr 2022 12:44:42 -0700
Subject: Add CDScript

---
 CDScript/README.md | 11 +++++++++++
 CDScript/cd        |  7 +++++++
 2 files changed, 18 insertions(+)
 create mode 100644 CDScript/README.md
 create mode 100755 CDScript/cd

diff --git a/CDScript/README.md b/CDScript/README.md
new file mode 100644
index 0000000..2c0fe83
--- /dev/null
+++ b/CDScript/README.md
@@ -0,0 +1,11 @@
+# cd(1)
+
+`cd` may not be a shell built-in.
+
+Usage: `/path/to/cd /path/`
+
+Requires root. Not working on fish.
+
+## Under the hood
+
+I just ptrace to attach to the shell and call the `chdir()` syscall.
diff --git a/CDScript/cd b/CDScript/cd
new file mode 100755
index 0000000..463fe8e
--- /dev/null
+++ b/CDScript/cd
@@ -0,0 +1,7 @@
+#!/bin/sh
+set -e
+DIR=$1
+if test -z "$DIR"; then
+	DIR=$HOME
+fi
+exec sudo gdb -ex 'set confirm off' -ex "call (int) chdir(\"$DIR\")" -ex quit -p $PPID
-- 
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