refactor show-cpu-and-memory.sh: fix check pid

Author: superhj1987

show-cpu-and-memory.sh

@@ -9,6 +9,11 @@
 
 for i in `ps -ef | egrep -v "awk|$0" | awk '/'$1'/{print $2}'` 
 do 
+	# not pid
+	if [[ $i == *[!0-9]* ]]; then
+		continue
+	fi
+
     mem=`cat /proc/$i/status 2> /dev/null | grep VmRSS | awk '{print $2" " $3}'` 
     cpu=`top -n 1 -b | awk '$1=='$i'{print $9}'`