From 159dae1e649665701a4777cbff59e9bc6ccfc44b Mon Sep 17 00:00:00 2001
From: typebrook <typebrook@gmail.com>
Date: Mon, 16 Mar 2020 12:09:53 +0800
Subject: Add error message

---
 gist | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gist b/gist
index a57811d..439a60d 100755
--- a/gist
+++ b/gist
@@ -276,6 +276,7 @@ _show_list() {
 
 # TODO support filenames, file contents
 _grep_content() {
+  if [[ -z $1 ]]; then echo 'Please give a pattern' && return 1; fi
   while read -r index url _ _ _ _ _ _ description; do
     if grep --color=always -iq "$1" <<<"$description"; then
       hint=false mark="$index " _show_list | grep --color=always -Ei "$1"
-- 
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