From ce191006c6c76df7158e28bb5e5ee95d1399e66e Mon Sep 17 00:00:00 2001
From: Manuele Simi <manuele.simi@isti.cnr.it>
Date: Wed, 17 Feb 2021 09:35:05 -0500
Subject: [PATCH] Manage empty results.

---
 27-01-2021-grepString/grepHttp.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/27-01-2021-grepString/grepHttp.sh b/27-01-2021-grepString/grepHttp.sh
index 6879405..b1d0834 100644
--- a/27-01-2021-grepString/grepHttp.sh
+++ b/27-01-2021-grepString/grepHttp.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
-out=`find . -name '*.java' -exec grep 'http://' /dev/null {} +`
-echo "${out}"
-if [[  -n "${out}" && "$(grep '\.java' <<< ${out})" ]]; then
+out=`find . -name '*.java' -exec grep 'http://' /dev/null {} + || echo 'empty'`
+if [[ ["${out}" != "empty"] && "$(grep '\.java' <<< ${out})" ]]; then
+    echo "${out}"
     echo "HTTP protocol found"
 else
     echo "HTTP protocol not found"