[A] demo - video

demo/cmd.txt

@@ -0,0 +1,18 @@
+# mkdir demo
+# cd demo
+# mkdir demo-git
+# cd demo-git
+# git init
+# git config --local user.name / user.email ...
+# cd ..
+
+echo real time prompt
+echo command running time cost prompt
+test command running error hint
+
+cd demo-git
+echo git status prompt
+touch test.txt
+git st
+git add -A
+git ci -m "test"