first commit

数据库/postgresql/monitor.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# Edit 2020/04/16
+
+# sql script
+# https://blog.csdn.net/Hehuyi_In/article/details/95893869
+# example：
+# sql="select count(*) from pg_stat_activity where state='idle in transaction';"
+# message="处于空闲状态的会话"
+sql=""
+message=""
+
+user=postgres
+source /home/$user/.bash_profile
+
+
+if [ $UID -ne `id -u $user` ];then
+        echo -e "\033[31;1mNot Manager of PostgreSQL! \033[0m"
+        exit 1
+fi
+
+# get value
+valuse=`psql postgres -c "$sql" | sed -n '3p' | sed 's/ //g'`
+
+echo "$message=$valuse"