add grep-log4j-core script

27-01-2021-grepString/grep-log4j-core.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+out=`find . -name pom.xml -exec grep 'log4j-core' /dev/null {} + || echo 'empty'`
+if [[ ["${out}" != "empty"] && "$(grep pom.xml <<< ${out})" ]]; then
+    echo "${out}"
+    echo "log4j-core found"
+else
+    echo "log4j-core not found"
+fi