From 1fdf4a5283aa38a2bd97d83e8758ea44ec51052f Mon Sep 17 00:00:00 2001
From: "David J. Malan" <malan@harvard.edu>
Date: Tue, 2 Jul 2024 22:39:59 -0400
Subject: [PATCH] added helper for, e.g., "check 50"

---
 opt/cs50/lib/help50/bash | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/opt/cs50/lib/help50/bash b/opt/cs50/lib/help50/bash
index defd38b..4f748de 100755
--- a/opt/cs50/lib/help50/bash
+++ b/opt/cs50/lib/help50/bash
@@ -36,6 +36,12 @@ if [[ "$output" =~ $regex ]]; then
         exit
     fi
 
+    # If CS50 command
+    if [[ "${BASH_REMATCH[1]}" =~ ^(check|style|submit)$ && "$2" == "50" ]]; then
+        echo "Did you mean to run \`${BASH_REMATCH[1]}50\`, without a space, instead?"
+        exit
+    fi
+
     # If backslash instead of forward slash
     if [[ "${BASH_REMATCH[1]}" =~ ^\.(.*) ]]; then
         if [[ -f "./${BASH_REMATCH[1]}" ]]; then