diff --git a/pct_public_key.sh b/pct_public_key.sh
new file mode 100644
index 0000000..bed1203
--- /dev/null
+++ b/pct_public_key.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Define the public key to add
+PUBLIC_KEY="YOUR_PUBLIC_KEY_STRING_HERE" # <--- REPLACE THIS WITH YOUR ACTUAL PUBLIC KEY
+
+# Define file paths
+SSH_DIR="$HOME/.ssh"
+AUTHORIZED_KEYS_FILE="$SSH_DIR/authorized_keys"
+
+# Create .ssh directory and set permissions if it doesn't exist
+mkdir -p "$SSH_DIR" && chmod 700 "$SSH_DIR" || { echo "Error: Could not create or set permissions for $SSH_DIR. Exiting."; exit 1; }
+
+# Create authorized_keys file and set permissions if it doesn't exist
+touch "$AUTHORIZED_KEYS_FILE" && chmod 600 "$AUTHORIZED_KEYS_FILE" || { echo "Error: Could not create or set permissions for $AUTHORIZED_KEYS_FILE. Exiting."; exit 1; }
+
+# Check if the key already exists to prevent duplicates
+if grep -qF "$PUBLIC_KEY" "$AUTHORIZED_KEYS_FILE"; then
+  echo "Key already exists in $AUTHORIZED_KEYS_FILE. No changes made."
+else
+  # Add the key
+  echo "$PUBLIC_KEY" >> "$AUTHORIZED_KEYS_FILE"
+  echo "Key successfully added to $AUTHORIZED_KEYS_FILE."
+fi
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